In order for color constancy to occur
A)the SPD of the illumination must be broad across the visible spectrum and there must be more than one surface color.
B)the SPD of the illumination must be monochromatic and there must be more than one sur- face color.
C)the SPD of the illumination must be broad across the visible spectrum and there must be only one surface color.

Question

Quizplus · Accepted Answer

Color constancy occurs when the spectral power distribution of the illumination is broad across the visible spectrum, allowing for the activation of all types of cones in the eye. This, in turn, allows the brain to make comparisons between the reflectance of different surfaces and adjust for the differences in illumination. If the illumination is monochromatic, all surfaces will reflect the same spectral energy, making it difficult for the brain to differentiate between them. Additionally, if there is only one surface color, there is no need for the brain to adjust for the differences in illumination, as there is only one surface to compare. Therefore, the correct answer is A.

In Order for Color Constancy to Occur