9 January 1984 A Simple Analytic Expression For The Contrast Sensitivity Of The Human Eye As A Function Of Brightness
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Abstract
A simple analytic expression for human visual contrast sensitivity as a function of space frequency has been developed which is dependent only on brightness. This approximation yields results generally within the + 20% uncertainty of most such human measurements when compared to what little published data exists. This approximation is applicable for contrasts greater t4an 1% and space frequencies greater than 0.1 cycle per mrad and for brightness down to 10-4 ft. L which covers the region of most practical modeling interest.
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Howard Borough, Howard Borough, } "A Simple Analytic Expression For The Contrast Sensitivity Of The Human Eye As A Function Of Brightness", Proc. SPIE 0432, Applications of Digital Image Processing VI, (9 January 1984); doi: 10.1117/12.936692; https://doi.org/10.1117/12.936692
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