Biomedical Engineering Reference
In-Depth Information
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FIGURE 16.1
Relative absorption for (a) two (b) three hypothetical pigments. The absorbance functions are constructed as
Gaussians with corresponding means.
possible chromaticities. When the JNDs are plotted to a chromaticity diagram, they appear
as ellipses of different sizes. This clearly shows the nonuniform nature of the color space
with respect to human vision.
16.4
Model of the Color-Vision System
Organization of visual systems of living species inspired inclusion of preprocessing abil-
ity to artificial vision sensors—vision chips. These are special-purpose silicon circuits that
 
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