On the Role of Computers in Creativity-Support Systems - Computational Creativity Research: Towards Creative Machines - page 113

Task

home

PPB = Home studio

does not
exist

is
required

Ratio
decidendi

is
important

suitable space provided
by the employer

takes most
time

if a place is shared, it is not
suitable for keeping research and
writing material

Intermediate
level

place3

place1

task1

taxpayer
educator

place2

employer task2

place4

City
College

library

Weissman

classroom

research

teaching

professor

home

Facts

Fig. 6.6 Reinterpreted Drucker case applied to the Weissman case to support a decision in favor of
Weissman ( Dashed lines means provided by, dotted lines mean designated space for, and dot-dash
lines means performed at PPB is principal place of business .)

features were used in determining the degree of similarity. To address this problem,
we turned to image-processing programs.
In the field of machine vision, a number of algorithms have been developed for
low-level visual processing. These algorithms extract features (like color, shape,
texture, and so on) of images, which are analogous to features found in the early
stages of visual processing in humans. So a similarity measure based on these features
would reflect perceptual similarity.
We used one such image-based search system called Fast Image Search in Huge
Database (FISH), which compares two images based on low-level perceptual features
like color, shapes, texture, etc., to get a similarity index for them [ 64 ]. We refer to
this as algorithmic perceptual similarity . For example, consider the pair of images
shown in Fig. 6.7 . The image on the left is of the world-famous marble mausoleum
Taj Mahal that was built by the Moghul emperor Shah Jahan in the 17th century. The
image on the right is of wine bottles. These two images were given a high perceptual
similarity index by the FISH system. In fact, the wine bottles image was retrieved by
the system as a similar image when queried by the Taj Mahal image. If we examine
them carefully, we can see the perceptual similarities: the tall slender minarets of
the Taj Mahal are analogous to the shape of the wine bottles. However, when people