By Shahin Aldhahir

Year 2013


Trichromatic and Opponent-process color theories has introduced some complicated systems for color mixing and color perception. Bothe theories has assumed three color receptors as principle color sensors for generating any colored scene; one receptor for shortwave called S-cone and another for medium wavelength called M-cone and another one for long wave length called L-cone. Our approach to this inspiring phenomena has different simple assumption and distinct proposal for color mixing and perceiving. Human color sight vision can be distinguished only by two color receptors, Long and Medium. Each receptor gain signal has its own value and polarity with respect to each incident electromagnetic wavelength through the whole visible spectrum. Blue color is only a color summation of (negative Red) and (negative Green), or it is just as – (Red+Green). S-cones with rods surrounding the fovea of our retina work together for night vision and dim light perceiving. color sense is now analogous to the other four known human senses since it has only two inversely related variables, i. e Positive (Red+Green) and negative (Red+Green). After-image phenomena and simultaneous contrast explain the color polarity for the same receptor as well. Cones topography on our retina coincide with our principle assumption, since the S-cones is approximately absent from the fovea spot (the most color sensitive part of our retina) and they spread with relatively very small population around the fovea in between rods (Williams et al., 1981)

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