The YCbCr to RGB formula

RGB2YCbCrconversions,therangeisRGB[0,255]toYCbCr[0,255]:

Y=R*0.301+G*0.586+B*0.113
Cb=R*-0.168+G*-0.332+B*0.500+128
Cr=R*0.500+G*-0.417+B*-0.082+128

WhentheYrangeof[0,255],UVrangeof[0,255],theYCbCrtoRGBformulais:

R=Y++(Cr-128)*1.40200
G=Y+(Cb-128)*-0.34414+(Cr-128)*-0.71414
B=Y+(Cb-128)*1.77200

　WhentheYrangeof[16,235],UVrangeof[16,240],theYCbCrtoRGBformulais:

　　R=(Y-16)*1.164+(Cr-128)*1.596
G=(Y-16)*1.164-(Cr-128)*0.813-(Cb-128)*0.391
B=(Y-16)*1.164+(Cb-128)*2.081

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