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Art, Creativity, and the Potential of Artificial Intelligence - MDPI
arts

Essay
Art, Creativity, and the Potential of
Artificial Intelligence
Marian Mazzone 1, *          and Ahmed Elgammal 2, *
 1    Department of Art & Architectural History, College of Charleston, Charleston, SC 29424, USA
 2    Department of Computer Science, Rutgers University, New Brunswick, NJ 08901-8554, USA
 *    Correspondence: mazzonem@cofc.edu (M.M.); elgammal@cs.rutgers.edu (A.E.)
                                                                                                      
 Received: 2 January 2019; Accepted: 14 February 2019; Published: 21 February 2019                    

 Abstract: Our essay discusses an AI process developed for making art (AICAN), and the issues
 AI creativity raises for understanding art and artists in the 21st century. Backed by our training in
 computer science (Elgammal) and art history (Mazzone), we argue for the consideration of AICAN’s
 works as art, relate AICAN works to the contemporary art context, and urge a reconsideration of how
 we might define human and machine creativity. Our work in developing AI processes for art making,
 style analysis, and detecting large-scale style patterns in art history has led us to carefully consider
 the history and dynamics of human art-making and to examine how those patterns can be modeled
 and taught to the machine. We advocate for a connection between machine creativity and art broadly
 defined as parallel to but not in conflict with human artists and their emotional and social intentions
 of art making. Rather, we urge a partnership between human and machine creativity when called for,
 seeing in this collaboration a means to maximize both partners’ creative strengths.

 Keywords: artificial intelligence; art; creativity; computational creativity; deep learning;
 adversarial learning

1. AI-Art: GAN, a New Wave of Generative Art
      Over the last 50 years, several artists and scientists have been exploring writing computer
programs that can generate art. Some programs are written for other purposes and are adopted
for art making, such as generative adversarial networks (GANs). Alternatively, programs can be
written that intend to make creative outputs. Algorithmic art is a broad term that points to any art that
cannot be created without the use of programming. If we look at the Merriam-Webster definition of art,
we find “the conscious use of skill and creative imagination especially in the production of aesthetic
objects; the works so produced”. Throughout the 20th century, that understanding of art has been
expanded to include objects that are not necessarily aesthetic in their purpose (for example, conceptual
art), and not created physical objects (performance art). Since the challenges of Marcel Duchamp’s
practice, the art world has also relied on the determination of the artist’s intention, institutional display,
and audience acceptance as critical defining steps to decide whether something is “art”.
      The most prominent early example of algorithmic art work is by Harold Cohen and his program
AARON (aaronshome.com). American artist Lillian Schwartz, a pioneer in using computer graphics
in art, also experimented with AI (Lillian.com). However, in the last few years, the development of
GANs has inspired a wave of algorithmic art that uses Artificial Intelligence (AI) in new ways to
make art (Schneider and Rea 2018). In contrast to traditional algorithmic art, in which the artist had
to write detailed code that already specified the rules for the desired aesthetics, in this new wave,
the algorithms are set up by the artists to “learn” the aesthetics by looking at many images using
machine learning technology. The algorithm only then generates new images that follow the aesthetics
it has learned.

Arts 2019, 8, 26; doi:10.3390/arts8010026                                            www.mdpi.com/journal/arts
Art, Creativity, and the Potential of Artificial Intelligence - MDPI
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       Figure 11 explains
      Figure     explains thethe creative
                                 creative process
                                            process that
                                                      that is
                                                           is involved
                                                              involved in  in making
                                                                              making thisthis kind
                                                                                              kind of
                                                                                                    of AI
                                                                                                        AI art.
                                                                                                           art. The
                                                                                                                The artist
                                                                                                                      artist
chooses   a collection  of  images   to feed  the algorithm    (pre-curation),  for  example,
chooses a collection of images to feed the algorithm (pre-curation), for example, traditional arttraditional art portraits.
These images
portraits.  Theseare  then fed
                   images     areinto
                                   thena fed
                                         generative    AI algorithm
                                              into a generative         that tries to
                                                                    AI algorithm      imitate
                                                                                   that          these
                                                                                          tries to      inputs.
                                                                                                   imitate      The
                                                                                                            these     most
                                                                                                                   inputs.
widely    used  tool for   this is generative    adversarial    networks     (GANs),    introduced
The most widely used tool for this is generative adversarial networks (GANs), introduced by            by Goodfellow      in
2014    (Goodfellow    et al. 2014),  which   have  been  successful    in  many  applications
Goodfellow in 2014 (Goodfellow et al. 2014), which have been successful in many applications in thein the AI  community.
It iscommunity.
AI    the development      of GANs
                   It is the           that likely
                               development         sparked
                                                of GANs       thislikely
                                                           that     new wave
                                                                         sparkedof AI
                                                                                    thisArt.
                                                                                          new In wave
                                                                                                 the final step,
                                                                                                        of AI    theInartist
                                                                                                               Art.     the
sifts  through  many    output    images   to  curate a final  collection   (post-curation).
final step, the artist sifts through many output images to curate a final collection (post-curation).

      Figure
      Figure 1. AA block
                   block diagram
                          diagram showing
                                   showing the
                                            the artist’s
                                                 artist’s role
                                                           role using
                                                                using the
                                                                       the AI
                                                                           AI generative
                                                                              generative model
                                                                                         model in
                                                                                                in making
                                                                                                   making art.
                                                                                                           art.
      Diagram
      Diagram created
                created by author A. Elgammal.

       In this
      In  this kind
                 kindofofprocedure,
                           procedure,    AIAI
                                            is used   as a as
                                                is used    toola in  thein
                                                                  tool    creation     of art. The
                                                                             the creation              creative
                                                                                                 of art.           process isprocess
                                                                                                            The creative         primarilyis
done    by  the  artist in the   pre-   and  post-curatorial      actions,    as  well    as  in
primarily done by the artist in the pre- and post-curatorial actions, as well as in tweaking the  tweaking      the    algorithm.    There
have been many
algorithm.      Theregreat
                        haveartbeenworks
                                       many that  haveart
                                                great    been
                                                            workscreated
                                                                       thatusing
                                                                             have this beenpipeline.
                                                                                               createdThe  usinggenerative      algorithm
                                                                                                                     this pipeline.    The
always produces
generative             images
                algorithm         that surprise
                             always      produces   theimages
                                                         viewerthatand surprise
                                                                         even the the  artistviewer
                                                                                                who presides
                                                                                                         and even    overthetheartist
                                                                                                                                 process.
                                                                                                                                       who
       Figure
presides    over2 the
                   is an  example of what a typical GAN trained on portrait paintings would produce.
                       process.
WhyFigure
        might 2we    like
                  is an   or hateof
                        example       these
                                         whatimages,
                                                a typicaland
                                                           GAN should     we on
                                                                    trained     callportrait
                                                                                      them art?       We will
                                                                                                 paintings        try toproduce.
                                                                                                              would        answer these
                                                                                                                                      Why
questions
might    we from
               like ora perception       and a psychology
                         hate these images,         and shouldpoint         of view.
                                                                      we call      them Experimental
                                                                                            art? We will try    psychologist
                                                                                                                       to answerDanielthese
E. Berlynefrom
questions       (1924–1976)     studied
                     a perception       andthe   basics of the
                                              a psychology          psychology
                                                                 point    of view. of      aesthetics for
                                                                                        Experimental            several decades
                                                                                                             psychologist       Danieland E.
Berlyne    out that novelty,
pointed (1924–1976)       studiedsurprisingness,
                                      the basics of  complexity,    ambiguity,
                                                       the psychology               and puzzlingness
                                                                             of aesthetics      for several aredecades
                                                                                                                  the most     significant
                                                                                                                             and   pointed
properties
out            in stimulus
      that novelty,           relevance tocomplexity,
                        surprisingness,        studying aesthetic
                                                             ambiguity,  phenomena          (Berlyne are
                                                                             and puzzlingness            1971).theAlthough        there are
                                                                                                                       most significant
several alternative
properties               newer
               in stimulus         theories
                             relevance     tothan    Berlyne’s,
                                               studying             we use
                                                            aesthetic         it in our explanation
                                                                         phenomena          (Berlyne 1971).  for Although
                                                                                                                   its simplicity    as are
                                                                                                                                 there   the
explanation
several          does not
          alternative       contradict
                         newer     theoriesother
                                              thantheories.
                                                     Berlyne’s,Indeed,
                                                                   we use  theit resulting     images with
                                                                                 in our explanation          forall
                                                                                                                  its the  deformations
                                                                                                                       simplicity    as the
in the faces are
explanation      doesnovel,  surprising,other
                       not contradict        and theories.
                                                   puzzlingIndeed,
                                                                to us. Inthefact,   they might
                                                                                resulting     images remind
                                                                                                         withus  alloftheFrancis   Bacon’s
                                                                                                                          deformations
famous
in         deformed
   the faces            portraits
                are novel,           such as
                            surprising,        Three
                                             and       Studiestofor
                                                   puzzling        us.a Portrait    of Henrietta
                                                                        In fact, they                Moraes (1963).
                                                                                           might remind                   However,
                                                                                                               us of Francis            this
                                                                                                                                   Bacon’s
comparison
famous           highlights
           deformed            a major
                        portraits    suchdifference,      that of
                                           as Three Studies      forintent.
                                                                     a PortraitIt was     Bacon’sMoraes
                                                                                    of Henrietta      intention
                                                                                                              (1963). to make    the faces
                                                                                                                          However,      this
deformed inhighlights
comparison        his portrait,   but thedifference,
                               a major      deformation   thatwe ofsee  in the
                                                                    intent.    It AI
                                                                                  was  artBacon’s
                                                                                           is not the     intention
                                                                                                      intention      to of  the artist
                                                                                                                         make            nor
                                                                                                                                 the faces
of the machine.
deformed              Simply put,
              in his portrait,    but the machine
                                            deformation failsweto see
                                                                   imitate
                                                                        in thetheAIhuman
                                                                                      art is notfacethecompletely
                                                                                                         intention of   and,
                                                                                                                           theasartist
                                                                                                                                   a result,
                                                                                                                                        nor
generates    surprising    deformations.        Therefore,    what    we   are   looking     at  are
of the machine. Simply put, the machine fails to imitate the human face completely and, as a result,  failure   cases    by  the  machine
that mightsurprising
generates       be appealing      to us perceptually
                           deformations.       Therefore,because
                                                              what weofare  their    novelty
                                                                                 looking          as failure
                                                                                             at are   visual cases
                                                                                                                stimuli  bycompared
                                                                                                                             the machine  to
naturalistic
that  might be  faces.  However,
                    appealing         these
                                  to us       “failure cases”
                                          perceptually            haveof
                                                            because      a positive
                                                                            their noveltyvisualas  impact
                                                                                                      visualonstimuli
                                                                                                                  us as viewers
                                                                                                                           compared   of art;
                                                                                                                                          to
only in thesefaces.
naturalistic      examples,
                        However,the artist’s   intentioncases”
                                       these “failure       is absent.
                                                                    have a positive visual impact on us as viewers of
art; only in these examples, the artist’s intention is absent.
Art, Creativity, and the Potential of Artificial Intelligence - MDPI
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      Figure 2. Examples
                 Examples of images generated by training a generative adversarial network (GAN) with
      portraits from the last 500 years of Western art.
                                                   art. The distorted faces are the algorithm’s attempts to
      imitate those inputs. Images generated at Art & Artificial Intelligence Laboratory,
                                                                              Laboratory, Rutgers.
                                                                                          Rutgers.

      So far,
     So  far, most
              most art
                    art critics
                        critics have
                                have been
                                      been skeptical
                                            skeptical and  usually evaluate
                                                      and usually   evaluate only
                                                                              only the
                                                                                   the resulting
                                                                                        resulting images
                                                                                                  images while
                                                                                                           while
ignoring the
ignoring   the creative
               creative process
                         process that
                                  that generates
                                       generates them.   They might
                                                   them. They   might be
                                                                       be right
                                                                          right that
                                                                                that images
                                                                                     images created
                                                                                              created using
                                                                                                      using this
                                                                                                             this
type  of AI  pipeline are  not  that interesting. After all, this process just imitates  the pre-curated
type of AI pipeline are not that interesting. After all, this process just imitates the pre-curated inputsinputs
with
with aa slight
        slight twist.
               twist. However, if we look look at
                                               at the
                                                  the creative
                                                      creative process
                                                                process overall
                                                                        overall and
                                                                                 and not
                                                                                      not simply
                                                                                           simply the
                                                                                                   the resulting
                                                                                                       resulting
images, this activity falls clearly in the category of conceptual art because the artist has the option to
act in the choice-making roles of curation and tweaking. More sophisticated conceptual work will be
coming in the future as more artists explore AI tools and learn how to better manipulate the AI art
creative process.

2. Pushing
2. Pushing the
           the Creativity
               Creativity of
                          of the
                             the Machine:
                                 Machine: Creative,
                                          Creative, Not
                                                    Not Just
                                                        Just Generative
                                                             Generative
      At Rutgers’
     At   Rutgers’ ArtArt & & AI
                               AI Lab,
                                   Lab,we wecreated
                                                createdAICAN,
                                                           AICAN,an      analmost
                                                                             almostautonomous
                                                                                        autonomousartist.  artist.Our
                                                                                                                    Our
                                                                                                                      goalgoal
                                                                                                                             was was
                                                                                                                                   to
to study    the  artistic  creative   process      and  how    art   evolves      from   a  perceptual
study the artistic creative process and how art evolves from a perceptual and cognitive point of view.      and    cognitive  point
of view.
The  model The wemodel
                   built iswe  builtonisabased
                            based         theoryon     a theory
                                                     from          from psychology
                                                           psychology        proposed byproposed            by Colin(Martindale
                                                                                                Colin Martindale       Martindale
(Martindale     1990). simulates
1990). The process      The process how simulates      how artists
                                            artists digest   prior artdigest
                                                                           works prior  art at
                                                                                     until,  works
                                                                                                someuntil,    at they
                                                                                                         point,   somebreak
                                                                                                                        point,out
                                                                                                                                they
                                                                                                                                   of
break  out   of  established    styles   and    create   new   styles.     The    process    is realized
established styles and create new styles. The process is realized through a “creative adversarial            through   a  “creative
adversarial
network        network
           (CAN)”          (CAN)”2017),
                      (Elgammal       (Elgammal
                                             a variant et of
                                                          al.GAN
                                                              2017),thata variant     of GAN
                                                                            we proposed           that
                                                                                               that      we“stylistic
                                                                                                      uses    proposed    that uses
                                                                                                                       ambiguity”
“stylistic ambiguity”      to  achieve   novelty.     The  machine       is trained    between
to achieve novelty. The machine is trained between two opposing forces—one that urges the machine   two   opposing    forces—one
that
to   urgesthe
   follow     theaesthetics
                  machine of  to follow
                                 the art the
                                           it isaesthetics    of the art itdeviation
                                                  shown (minimizing             is shownfrom (minimizing       deviationwhile
                                                                                                   art distribution),      from the
                                                                                                                                  art
distribution),
other             while thethe
       force penalizes         other  force penalizes
                                  machine                  the machine
                                                if it emulates      an already if it emulates
                                                                                      established an already     established style
                                                                                                       style (maximizing        style
(maximizing
ambiguity). These two opposing forces ensure that the art generated will be novel butwill
                 style ambiguity).     These     two   opposing     forces    ensure    that  the  art   generated         be novel
                                                                                                                      at the   same
but atwill
time   the not
             same   time will
                  depart        not depart
                           too much     fromtoo      much from
                                                 acceptable         acceptable
                                                               aesthetic             aesthetic
                                                                              standards.      Thisstandards.     This“least
                                                                                                     is called the    is called   the
                                                                                                                             effort”
“least effort”
principle        principle in theory,
            in Martindale’s      Martindale’s
                                          and it is theory,  andin
                                                      essential    it art
                                                                      is essential
                                                                           generation  in art  generation
                                                                                          because      too muchbecause   toowould
                                                                                                                    novelty   much
novelty  would     result  in rejection   by  viewers.    Figure    3  illustrates    a block   diagram
result in rejection by viewers. Figure 3 illustrates a block diagram of the CAN network where the            of the  CAN   network
where   the receives
generator    generatortwo receives   twoone
                              signals,     signals,    one measuring
                                               measuring      the deviationsthe deviations
                                                                                     from art from       art distribution
                                                                                                 distribution      and the and
                                                                                                                            secondthe
second   measuring      style  ambiguity.      The   generator    tries   to  minimize      the
measuring style ambiguity. The generator tries to minimize the first to follow aesthetics and    first  to follow   aesthetics   and
maximize the
maximize     the second
                  second to to deviate
                               deviate from
                                         from established
                                                 established styles.
                                                                styles.
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      Figure 3. A block diagram of a creative adversarial network. The generator explores the creative space
      Figure
     Figure  3.3.A A
      by trying    to block
                   block     diagram
                      generate
                          diagram  of aofcreative
                                images     a creative
                                          that        adversarial
                                                maximize  style
                                                  adversarial       network.
                                                                 ambiguity
                                                              network.        The generator
                                                                        The while minimizing
                                                                             generator       explores
                                                                                       explores        the from
                                                                                                deviation
                                                                                                the creativecreative
                                                                                                                  art
                                                                                                              space
      space  by trying
      distribution.
     by trying           to generate
                      Diagram
                  to generate        images
                                by author
                               images         that maximize
                                         thatA.maximize
                                                Elgammal.stylestyle ambiguity
                                                                ambiguity     while
                                                                          while     minimizing
                                                                                 minimizing      deviationfrom
                                                                                              deviation     fromart
                                                                                                                  art
      distribution.Diagram
     distribution.    Diagramby byauthor
                                   authorA.  A.Elgammal.
                                                Elgammal.
        Unlike the generative AI art discussed earlier, this process is inherently creative. There is no
        Unlike
 curation
      Unlike onthethegenerative
                 the   generative
                      dataset;       AIart
                               instead,
                                    AI  art
                                          we discussed   earlier,this
                                              fed the algorithm
                                            discussed   earlier,   this  process
                                                                    80Kprocess
                                                                         images is is inherently
                                                                                       inherently5creative.
                                                                                   representing     creative.
                                                                                                     centuries There isisno
                                                                                                                of Western
                                                                                                              There       no
 curation
 art history,
curation     onthe
            on   the  dataset;instead,
                 simulating
                     dataset;   instead,
                               the        wefed
                                    process
                                         we   fed thealgorithm
                                              of the
                                                 how  algorithm
                                                       an artist 80K80Kimages
                                                                         images
                                                                   digests         representing
                                                                             art history,          5centuries
                                                                                            with 5no
                                                                                 representing        centuries
                                                                                                      special of ofWestern
                                                                                                                    Western
                                                                                                               selection  of
 art  history,
 genres
art              simulating
           or styles.
     history,                  the  process
                        The generative
                simulating                    of
                              the processprocess how   an
                                             of howusing   artist digests
                                                            CANdigests
                                                      an artist              art
                                                                    is seeking   history,
                                                                                 innovation.
                                                                           art history,     with
                                                                                           withTheno  special  selection
                                                                                                      outputsselection
                                                                                                no special                of
                                                                                                                surprise of
                                                                                                                          us
 genres
 all the or
genres     or styles.
          timestyles.
                 withTheThe generative
                                    of artprocess
                        the generative
                            range          AICANusing
                                          process         CAN
                                                          CANisFigure
                                                    generates.
                                                   using          isseeking   innovation.
                                                                           4 shows
                                                                      seeking                The
                                                                                               Theoutputs
                                                                                       the variety
                                                                                innovation.         of     surprise
                                                                                                       AICAN-generated
                                                                                                     outputs  surpriseususall
 the
 art.
all   time
    the  timewith
                withthethe
                         range
                           rangeof of
                                   artart
                                       AICAN
                                          AICAN  generates.
                                                   generates.Figure
                                                                Figure 4 shows
                                                                          4 shows thethe
                                                                                       variety of of
                                                                                          variety AICAN-generated
                                                                                                      AICAN-generated    art.
art.

      Figure 4.
      Figure  4. Examples
                 Examples ofof images
                               images generated
                                      generated by
                                                by AICAN
                                                   AICAN after
                                                           after training
                                                                 training with
                                                                           with images
                                                                                images from   all styles
                                                                                       from all   styles and
                                                                                                         and
     Figure
      genres4.from
                Examples
                    the past 500
                          of 500 years
                             images
                                 years of Western
                                       of Western
                                     generated    art. Images
                                               by art.
                                                  AICAN   after trainingofwith
                                                              courtesy         images
                                                                           the Art   Artificial Intelligence
                                                                                      from all Intelligence
                                                                                   & Artificial  styles and
      Laboratory,
     genres        Rutgers.
            from Rutgers.
      Laboratory,  the past 500 years of Western art. Images courtesy of the Art & Artificial Intelligence
     Laboratory, Rutgers.
       We
       We devised
            devised a visual Turing
                               Turing test
                                       test to
                                            to register
                                               register how
                                                         how people
                                                               people would
                                                                       would react
                                                                                react to the generated images and
 whether
 whether    they could tell the  difference  between    AICAN-    or human-created
                                                                      would react to art.
            they a visual Turing test to register how peoplehuman-created
      We devised                                                                             To make the
                                                                                        the generated       test timely
                                                                                                         images    and
 and of high
whether   high  quality,
           theyquality,  we
                         we
                could tell themixed
                             mixed    images
                                     images
                                difference      fromAICAN
                                              from
                                            between    AICAN
                                                       AICAN-    with
                                                              with     works
                                                                    works      from
                                                                            from
                                                                 or human-created  ArtArt   Basel
                                                                                        Basel
                                                                                       art.       2016
                                                                                            To 2016
                                                                                               make  the(the
                                                                                                    (the   testflagship
                                                                                                          flagship   art
                                                                                                                timely
and of high quality, we mixed images from AICAN with works from Art Basel 2016 (the flagship arta
 art
 fairfair
      in  in  contemporary
          contemporary        art).
                           art). We  We  also
                                      also     used
                                            used   a a set
                                                     set ofof images
                                                             images    from
                                                                      from    abstract
                                                                             abstract   expressionist
                                                                                        expressionist    masters
                                                                                                        masters     as
 baseline.
fair         Our study showed
     in contemporary      art). Wethat human
                                     also  usedsubjects
                                                  a set ofcould
                                                            imagesnotfrom
                                                                      tell whether
                                                                            abstractthe  art was made
                                                                                       expressionist      by a human
                                                                                                      masters      as a
 artist or Our
baseline.   by the machine.
                   machine.
                study showed   Seventy-five
                                 that humanpercent          the time,
                                                subjectsofcould        people
                                                                 not tell      in our
                                                                          whether  the study
                                                                                        art wasthought
                                                                                                  made by the  AICAN
                                                                                                             a human
artist or by the machine. Seventy-five percent of the time, people in our study thought the AICAN
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generated
generated images
            images were
                      were created
                               created byby aa human
                                                human artist.
                                                           artist. In
                                                                   In the
                                                                       the case
                                                                           case of
                                                                                 of the
                                                                                    the baseline
                                                                                          baseline abstract
                                                                                                     abstract expressionist
                                                                                                                expressionist
set,
set, 85% of the time subjects thought the art was by human artists. Our subjects even
     85%  of the  time  subjects     thought    the   art  was   by human     artists.  Our  subjects    even described
                                                                                                                described the
                                                                                                                            the
AICAN-generated
AICAN-generated images images using
                                  using words
                                          words suchsuch as    “intentional”, “having
                                                           as “intentional”,    “having visual
                                                                                           visual structure”,
                                                                                                   structure”, “inspiring”,
                                                                                                                  “inspiring”,
and
and “communicative”
      “communicative” at     at the
                                the same
                                     same levels
                                             levels as
                                                     as the
                                                        the human-created
                                                               human-created art.art.
      Beginning
      Beginning in October 2017, we started exhibiting AICAN’s
                   in October      2017,   we   started    exhibiting    AICAN’s workwork at at venues
                                                                                                venues in  in Frankfurt,
                                                                                                               Frankfurt, Los
                                                                                                                           Los
Angles,  New     York  City,   and   San   Francisco,     with   a different   set of  images   for
Angles, New York City, and San Francisco, with a different set of images for each show (Figure 5).   each    show   (Figure  5).
Recently,  in  December       2018,   AICAN      was   exhibited     in the  SCOPE      Miami
Recently, in December 2018, AICAN was exhibited in the SCOPE Miami Beach Art Fair. At these      Beach    Art  Fair.  At these
exhibitions,
exhibitions, the
               the reception
                   reception of  of works
                                    works was was overwhelmingly
                                                    overwhelmingly positive
                                                                          positive on
                                                                                    on the
                                                                                         the part
                                                                                             part of
                                                                                                   of viewers
                                                                                                       viewers who
                                                                                                                 who had
                                                                                                                       had nono
prior  knowledge    that   the  art shown     was   generated     using  AI. People    genuinely
prior knowledge that the art shown was generated using AI. People genuinely liked the artworks      liked   the artworks   and
engaged   in various
and engaged            conversations
                in various    conversationsaboutabout
                                                   the process.    We heard
                                                          the process.         one question
                                                                         We heard              time and
                                                                                     one question     timeagain:    Who is
                                                                                                              and again:    the
                                                                                                                          Who
artist? Here, we
is the artist?      positwe
                 Here,      that  the person(s)
                               posit                setting upsetting
                                       that the person(s)         the process
                                                                          up the designs
                                                                                    processa conceptual
                                                                                              designs a and       algorithmic
                                                                                                              conceptual   and
framework,     but  the  algorithm      is  fully  at the   creative   helm   when    it comes    to
algorithmic framework, but the algorithm is fully at the creative helm when it comes to the elements the  elements    and   the
principles  of  the art it  creates.  For   each   image    it generates,  the  machine     chooses    the
and the principles of the art it creates. For each image it generates, the machine chooses the style, the   style, the subject,
the  forms,
subject, theand   composition,
              forms,                including
                      and composition,            the textures
                                               including          and colors.
                                                              the textures  and colors.

      Figure 5. Photographs from AICAN exhibition held in Los Angeles in October 2017. Photographs by
      author A. Elgammal.

3. AI in
3. AI in Art
         Art and
             and Art
                 Art History
                     History
       The
       The CAN
            CAN study
                    study provoked
                             provoked a      a number
                                               number of   of concerns      about AI
                                                               concerns about        AI as
                                                                                         as aa threat
                                                                                               threat oror rival
                                                                                                           rival toto art
                                                                                                                       art made
                                                                                                                            made by by
human
human beings. Yes, the study is interested in the process of art creation, and the more problem
          beings.  Yes,  the   study   is  interested    in the  process   of  art  creation,  and   the more    abstract    abstract
of what creativity
problem                 is and does.
            of what creativity       is and However,      AI focuses
                                                does. However,        AIon    developing
                                                                          focuses             a machinea process
                                                                                      on developing         machine andprocessmachine
                                                                                                                                  and
creativity,  not merely
machine creativity,        aping
                         not        and aping
                               merely      trying and
                                                    to pass   as human-made.
                                                          trying                     Our work is focused
                                                                    to pass as human-made.             Our work on understanding
                                                                                                                     is focused on
the  process of creativity
understanding               such that
                    the process          a means can
                                    of creativity     such be that
                                                               found a to modelcan
                                                                       means        thatbeprocess
                                                                                            foundtotogenerate
                                                                                                         model athatcreative    result.
                                                                                                                          process   to
One    way  to  do  this,  and   what     this  study    has   chosen,   is  to model     the  process
generate a creative result. One way to do this, and what this study has chosen, is to model the process  by  which     art  is taught
and   then stimulate
by which    art is taughtAICAN      to synthesize
                             and then      stimulatethatAICAN styletoinformation
                                                                       synthesize and that next
                                                                                            stylecreate   something
                                                                                                  information      and new.     To do
                                                                                                                         next create
this,  the machine      was   trained    on   many    thousands       of human-created
something new. To do this, the machine was trained on many thousands of human-created paintingspaintings    in a  process     parallel
to
in aa human
       processartists’
                 parallelexperience
                            to a human    of looking      at other artists’
                                               artists’ experience             works,atlearning
                                                                         of looking                  by example.
                                                                                            other artists’   works,The       AICAN
                                                                                                                        learning    by
system    was  then    designed    to  encourage       choices    that deviate
example. The AICAN system was then designed to encourage choices that deviate fromfrom    copying/repeating        what    had   been
seen   (the GAN function)
copying/repeating        what to hadencouraging
                                        been seen new  (the combinations
                                                             GAN function)      andtonew    choices based
                                                                                       encouraging      new on     a knowledge
                                                                                                               combinations         of
                                                                                                                                  and
art
newstyles   (thebased
       choices    CANon  function).
                             a knowledgeIf theof creation
                                                   art stylesprocess   is modeled
                                                                (the CAN               successfully,
                                                                              function).                art may
                                                                                           If the creation         result.
                                                                                                              process    is modeled
       One  barometer     of
successfully, art may result.whether      art  has  been   successfully    created    through    the  chosen   process    is whether
human  Onebeings   appreciate
             barometer             it as artart
                            of whether          andhasdobeen
                                                           not necessarily
                                                                 successfullyrecognize        it as AI-derived.
                                                                                  created through        the chosen   AICAN
                                                                                                                          process wasis
tasked    with   creating    works    that     did  not   default    into  the  familiar     psychedelic
whether human beings appreciate it as art and do not necessarily recognize it as AI-derived. AICAN           patterning      of  most
GAN-generated
was tasked with imagescreatingasworks
                                    a testthat
                                             of itsdid
                                                     creativity
                                                        not defaultfunction.
                                                                       into the Our   inclusion
                                                                                   familiar        of viewerpatterning
                                                                                              psychedelic       surveys toofgaugemost
peoples’   responses     did   not  aim     to prove   that   the  AICAN      artifacts   were   better
GAN-generated images as a test of its creativity function. Our inclusion of viewer surveys to gauge      than   human      creations,
but  ratherresponses
peoples’      to gaugedid whether
                               not aim thetoAICAN       works
                                               prove that     thewere
                                                                   AICAN aesthetically     recognizable
                                                                              artifacts were     better than as human
                                                                                                                 art, andcreations,
                                                                                                                             whether
human     viewers    liked  the  AI-generated         works    of art. It seemed     most    pertinent
but rather to gauge whether the AICAN works were aesthetically recognizable as art, and whether          to  have   viewers     assess
the
humanAICAN     images
          viewers        in the
                     liked   a group     with other
                                  AI-generated          contemporary
                                                      works                 imagesmost
                                                               of art. It seemed       rather  than historical
                                                                                             pertinent   to haveones,
                                                                                                                    viewershence   the
                                                                                                                                assess
the AICAN images in a group with other contemporary images rather than historical ones, hence the
Arts 2019, 8, 26                                                                                        6 of 9

choice to select these from Art Basel. The objective was to learn whether AICAN can produce work
that is able to qualify or count as art, and if it exhibits qualities that make it desirable or pleasurable to
look at. In other words, could AICAN artifacts be recognized as quality aesthetic objects by human
beings? Because we used Berlyne’s theory of arousal potential, the response of human beings to the
images was a necessary check to evaluate the quality level of AICAN creativity.
      There may always be a number of artists and art lovers who resist the idea of AI in art because of
technophobia. For them, the machine simply has no place in art. In addition, many lack understanding
of what AI actually is, how it works, and what it can and cannot be made to do. There is also an
element of fear at work, resulting in an imagined future in which AI will commandeer art making and
crank out masses of soulless abstract paintings. However, as we discuss throughout this article, AI is
really very limited and specific in what it can do in terms of art creation, and it was never our goal is
to supplant the role of the human artist. There is simply and profoundly no need to do that. It is an
interesting problem in machine learning to model the process of image creation and to explore what
creativity might mean within the confines of computation, but these are issues separate and apart from
how a human being makes art, and they are not mutually exclusive in any way. The very best outcome
we can imagine is a fruitful partnership between an artist and a creative AI system. However, we are
in the very early days of developing algorithms for such AI systems.
      A comparison with photography is useful because both forms of technology first encountered
resistance in the art world based on the use of a machine in the art-making process. This comparison
has been discussed widely, including in this issue of Arts (Hertzmann 2018) (Agüera y Arcas 2017),
so we will not elaborate on it here. A hopeful sign for AI art is that eventually, some photography was
fully accepted as art. A key path towards its acceptance was the dialogue that developed between
two mediums: Photographers worked to incorporate some of the formal and aesthetic characteristics
of painting, while painters were closely looking at photography and shifting painting in response.
Painters were inspired by the compositional flatness, capture of movement, and summary edges of
the photographic viewfinder. Photographers shifted their approach to lighting, focus, and subject
matter as inspired by the aesthetic criteria of painting. Thus, a feedback loop was established between
the practices of painting and photography. In both cases, creators began to see differently based on
their experiences with the other medium. Perhaps this can happen between AI and painting in turn.
Currently, most AI systems are trained on thousands of paintings made by Western European and
American artists over the last several hundred years. In turn, the AIs create images that speak the
language of painting (color choices, form elements, arrangement of forms on a 2-D surface) and depose
their elements before the eyes of viewers in a way similar to how we look at paintings. Already, we have
contemporary practitioners such as Jason Salavon or Petra Cortright, whose practice demonstrates a
lively exchange between the processes of painting and those of computation. Photography did threaten
to supplant some of the functions of painting, particularly in those instances when a high degree of
naturalistic representation was desirable, such as in portraiture or in topographical representations.
Consequently, photography largely did replace painted portraits and most forms of topographical
imagery, for example. We imagine that AI-produced art could usefully replace some mass-produced
imagery such as decorative art or tourist scenes where repetition of a few pleasing characteristics is
desirable. Consumers would be the drivers of this market, electing for the machine-derived images or
preferring those created by a human.
      Another sound point of comparison is the replicative process of image production employed by
both the camera and the computer. Like the camera, the computer provides its user with a range of
repetitive and reproductive means to generate multiple images. As noted by Walter Benjamin in the
early 20th century (Benjamin [1936] 1969), the impact of the mass production and reproduction of
imagery has changed how we think about the originality and the legitimacy of reproductions of works
of art, and our viewing experience of art. Most people’s experience of art is now soundly in the realm
of reproductions, and we ascribe meaningfulness to the experience of the reproduction. Although
the singular, original work of art is a paradigm still operational in painting, it is markedly less so in
Arts 2019, 8, 26                                                                                      7 of 9

print making or photography, and completely absent in computational art. Computers can produce
many more and varied versions of an image through parameterization, randomizing tools, and other
generative processes than can nondigital photography or prints, but the theoretical principle of the
multiple still applies. The contemporary art world is well able to theorize and accept multiples or
reproductions as legitimate works of art, we believe even at the rate and level of complexity produced
by generative computational systems.
      There is, however, one profound difference between AI computer-based creativity versus other
machine-based image making technologies. Photography, and the similar media of film and video,
are predicated on a reference to something outside of the machine, something in the natural world.
They are technologies to capture elements of the world outside themselves as natural light on a plate or
film, fixed with a chemical process to freeze light patterns in time and space. Computational imagery
has no such referent in nature or to anything outside of itself. This is a profound difference that we
believe should be given more attention. The lack of reference in nature has historical implications for
how we understand something as art. Almost all human art creation has been inspired by something
seen in the natural world. There, of course, may be many steps between the inspiration and the
resulting work, such that the visual referent can be changed, abstracted or even erased by the final
version. However, the process was always first instigated by the artist looking at something in the
world, and photography, film, and video retained that first step of the art-making process through
light encoding. The computer does not follow this primal pattern. It requires absolutely nothing from
the natural world; instead, its “brain” and “eyes” (its internal apparatus for encoding imagery of any
kind) consist only of receptors for numerical data. There are two preliminary points to elaborate here:
The first relates to issues in contemporary art, the second to the distinction from human creativity.
      First, the lack of referent in the natural world and the resulting freedom and range to create or not
create any object as a result of the artistic inspiration aligns AI and all computational methods with
conceptual art. Like with photography, the comparison with conceptual art has frequently been made
for AI and computational methods in general. In conceptual art, the act of the creation of the art work
is located in the mind of the artist, and its instantiation in any material form(s) in the world is, as Sol
Lewitt (Lewitt 1967) famously declared, “a perfunctory affair. The idea becomes a machine that makes
the art.” Thus, the making of an art object becomes simply optional. And although contemporary
artists in the main have not stopped making objects, the principle that object making is optional and
variable in relation to the art concept still remains. We believe this is at the heart of the usefulness of
the comparison with conceptual art: The idea or concept is untethered from nature, being primarily
located in the synapses of the brain and secondly disassociated from the dictates of the material world.
Most AI systems use some form of a neural network, which is modeled on the neural complexity
of the human brain. Therefore, AI and conceptual art coincide in locating the art act in the system
network of the brain, rather than in the physical output. The physical act of an artist, either applying
paint or carving marble, becomes optional. This removes the necessity of a human body (the artist) to
make things and allows us to imagine that there could be more than one kind of artist, including other
than human.

4. AI Art: Blurring the Lines between the Artist and the Tool
      Many artists and art historians resist seeing work created with AI as art because their definition
of art is based on the modern artist figure as the sole locus of art creation and creativity. Therefore,
the figure of the artist is necessary to their definition of art. But understanding art as a vehicle for the
personal expression of the individual artist is a relatively recent and culturally-specific conception.
For many centuries, across many cultures and belief systems, art has been made for a variety of reasons
under a wide range of conditions. More often created by groups of people rather than an individual
artist (think medieval cathedrals or guild workshops), art is often made to the specifications of patrons
and donors large and small, made to order, funded by a wide variety of groups, civic organizations,
or religious institutions, and made to function in an extraordinary range of situations. The notion
Arts 2019, 8, 26                                                                                            8 of 9

of a work of art being the coherent expression of the individual’s psyche, emotional condition, or
expressive point of view begins in the Romantic era and became the prevailing norm in the 19th and
20th centuries in Western Europe and its colonies. Although this remains a common motivation for
many artists working today, it does not mean it is the only and correct definition of art. And certainly,
it is not a role that any AI system will ever be able to fulfill. Clearly, machine learning and AI cannot
replicate the lived experience of a human being; therefore, AI is not able to create art in the same way
that human artists do. Thankfully, we are not proposing that it can in our work. Humans and AI do not
share all of the same sources of inspiration or intentions for art making. Why the machine makes art is
intrinsically different; its motivation is that of being tasked with the problem of making art, and its
intention is to fulfill that task. However, we are asking everyone to consider that a different process of
creation does not disqualify the results of the process as a viable work of art. Instead consider that
without the necessity of the individual expressive artist in our definition of art, how we conceptualize
art and art making is greatly expanded.
       AI is a set of algorithms designed to function as parallel to human intelligence actions such as
decision-making, image recognition, language translation/comprehension, or creativity. Elsewhere
in this issue of Arts, Hertzmann (Hertzmann 2018) makes a point about art algorithms being tools,
not artists. As we have argued, we would agree that the algorithms in AI are not artists like human
artists. But AI (art generating algorithm in this case) is more than a tool, like a brush with oil paint on
it, which is an inanimate and unchanging object. Certainly, artists learn over time and with experience
how to better use their tools, and their tools have a role in the physical actions by which they make
work in paint. However, the paintbrush does not have the capacity to change, it does not make
decisions based on past painting experiences, and it is not trained to learn from data. Algorithms
contain all of those possibilities. Perhaps we can conceptualize AI algorithms as more than tools and
closer to a medium. The word medium in the art world indicates far more than a tool, a medium
includes not only the tools used (brush, oil paint, turpentine, canvas, etc.) but also the range of
possibilities and limitations inherent to the conditions of creation in that area of art. Thus, the medium
of painting also includes a history of painting styles, the physical and conceptual restraints of the 2-D
surface, the limits of what can be recognized as a painting, a critical language that has been developed
to describe and critique paintings, and so on. Admittedly, we are in the very early days of the medium
of AI in art creation, but this medium might encompass tools such as code, mathematics, hardware
and software, printing choices, etc., with medium conditions including algorithmic structuring, data
collection and application, and the critical theory needed to detect and judge computational creativity
and artistic intention within the much larger field of computer science. At this time, a problem is
the relatively small number of people able to work creatively in this field or judge the role of the
machine in the exercise of creative processes. This will change over time as artists, computer scientists,
and historians/critics all become more knowledgeable. For human artists who are interested in
the possibilities (and limitations) of AI in creativity and the arts, using AI as a creative partner is
already happening now and will happen in the future. In a partnership, both halves bring skill sets
to the process of creation. As Hertzmann notes in his article and Cohen discovered in his work with
the AARON program, human artists bring capacity for high-quality work, artistic intent, creativity,
and growth/change over time. Art is a social interaction. Actually, we think we can argue that AI does
a fair amount of this, and it can certainly all be accomplished in a creative partnership between and
artist and his or her AI system.

Author Contributions: Conceptualization, M.M. and A.E.; methodology A.E. and M.M.; data curation A.E.;
software A.E.; validation A.E.; writing—original draft preparation M.M. (abstract, introduction, Sections 3 and 4)
and A.E. (Sections 1 and 2); writing—reviewing and editing, M.M.
Funding: This research received no external funding.
Conflicts of Interest: The authors declare no conflict of interest.
Arts 2019, 8, 26                                                                                            9 of 9

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                       © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
                       article distributed under the terms and conditions of the Creative Commons Attribution
                       (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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