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:
In Python, you actually can’t do that because *args is always a tuple:
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// 易错点3:必须先判断stack2.length0,再访问stack2.at(-1)(避免栈空时取到undefined)。关于这个话题,Line官方版本下载提供了深入分析
# egress = "unrestricted" # default
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