Light is the Cause of Color
All the objects that surround us have no color. Color exists only in our minds. Color is a visual sensation that involves three elements – a light source, an object and a viewer. Light from the sun or another light source strikes objects around us, is reflected and modified by the objects, then reaches the receptors in our eyes and is interpreted by our brains into something we call color.
Since color only exists in our minds, explaining the physical aspects of color is just part of the story. The way objects appear to us and the judgements we make about color are determined by a combination of many factors. Some of these factors are easy to measure and some are not. Individual perceptual differences, eye fatigue and mood of the viewer are as important to a discussion about color as are the properties of
light sources and objects. Color as perceived by the human eye cannot be simulated by any instrument, nor can it be reproduced by any printing process. Light is essential for vision. Light causes color. Without light color would not exist.
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