Standard Observer


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A hypothetical visual system defined as mathematical equations (Color Matching Functions) intended to represent the typical human.

The Standard Observer is used as a universal technical definition of the perceptual effects of light stimuli on humans, specifically as part of the .

While they may look like the of the , they are not intended to match, as the L-Cone does not have 2 peaks in its like the ‘x’ Color Matching Function. In fact, the ‘x’ function is actually a mix of all 3 .

of the Standard Observer. These three curves are the Color Matching Functions.