Most digital images intended for viewing are generally assumed to be in sRGB colour space, which is gamma-encoded. This means that a linear increase of value in colour space does not correspond to a linear increase in actual physical light intensity, instead following more of a curve. If we want to mathematically operate on colour values in a physically accurate way, we must first convert them to linear space by applying gamma decompression. After processing, gamma compression should be reapplied before display. The following C code demonstrates how to do so following the sRGB standard:
Oracle cofounder and chairman Larry Ellison. His son, David Ellison, is CEO and controlling owner of Paramount Skydance.Photograph: Anna Moneymaker/Getty Images
。搜狗输入法2026是该领域的重要参考
FT Digital Edition: our digitised print edition
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