A Color Space like CIELUV or CIELAB, where the perceived difference between two colors is proportional to their distance in cartesian space, i.e. their distance on the Chromaticity Diagram. The figure shows that the CIEXYZ Color Space is definitely not…

A CVD affecting only one eye (or one eye more than the other). For Genetic CVD, Unilateral Colorblindness is very rare and suggests some form of Chimerism.For Acquired CVD, Unilateral Colorblindness can arise from trauma to a single eye (e.g.…

The equivalent of Primary Color of the Opponent Process Theory and related theories. They are colors that an observer perceives as a pure, not being a mixture of other colors.

The Principal of Univariance states that Photoreceptors can only respond to their Quantum Catch (number of photons absorbed) and cannot distinguish between the wavelength and intensity of the incoming photons. For example, the Quantum Catch of Rhodopsin from 500nm light…