home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Illusion - Is Seeing Really Believing?
/
Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
/
pc
/
illusion
/
rock_txt.cxt
/
00201_Text_ref06t.txt
< prev
next >
Wrap
Text File
|
1997-02-04
|
1KB
|
34 lines
If some modes of
representation can plausibly be
explained as conventions, can
the use of lines in pictures be
explained in the same way?
Perhaps a sharp outline of a
cloud is accepted, by
convention, as representing a
cloud, even though the
boundaries of real clouds are
typically much "softer" and
gradual. Perhaps the circles on
a giraffe are partially based on
convention. Although these
particular explanations may be
correct, in general the
convention theory can be
faulted both on logical and on
empirical grounds, as Kennedy
has noted. On logical grounds,
the fact is that, despite solidly
colored and textured surfaces
between edges in real scenes, it
is the contours at such edges
that are of primary importance
in conveying information about
object and depth relations in
the scene. Contours at edges are
very similar to lines as used in
pictures. Thus the drawing of
the hand contains much the
same information as does the
eyeΓÇÖs image of the hand itself.