Abstract
The dichromatic color appearance of a chromatic
stimulus T can be described if a stimulus S is found that
verifies that a normal observer experiences the same sensation viewing
S as a dichromat viewing T. If dichromatic and normal versions
of the same color vision model are available, S can be computed
by applying the inverse of the normal model to the descriptors of T
obtained with the dichromatic model. We give analytical form to this algorithm,
which we call the correspondingpair procedure. The analytical form highlights
the requisites that a color vision model must verify for this procedure
to be used. To show the capabilities of the method, we apply the algorithm
to different color vision models that verify such requisites. This algorithm
avoids the need to introduce empirical information alien to the color model
used, as was the case with previous methods. The relative simplicity of
the procedure and its generality makes the prediction of dichromatic color
appearance an additional test of the validity of color vision models. ©
2004 Optical Society of America
