文件名称:jpg_function
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- 上传时间：2012-11-16
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文件大小：883byte
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// RGB -> YCbCr
// Y = Coef. for red*Red+Coef. for green*Green+Coef. for blue*Blue
// Cb = (Blue-Y)/(2-2*Coef. for blue)
// Cr = (Red-Y)/(2-2*Coef. for red)
// YCbCr -> RGB
// Red = Cr*(2-2*Coef. for red)+Y
// Green = (Y-Coef. for blue*Blue-Coef. for red*Red)/Coef. for green
// Blue = Cb*(2-2*Coef. for blue)+Y
-// RGB-> YCbCr
// Y = Coef. for red*Red+Coef. for green*Green+Coef. for blue*Blue
// Cb = (Blue-Y)/(2-2*Coef. for blue)
// Cr = (Red-Y)/(2-2*Coef. for red)
// YCbCr-> RGB
// Red = Cr*(2-2*Coef. for red)+Y
// Green = (Y-Coef. for blue*Blue-Coef. for red*Red)/Coef. for green
// Blue = Cb*(2-2*Coef. for blue)+Y
// Y = Coef. for red*Red+Coef. for green*Green+Coef. for blue*Blue
// Cb = (Blue-Y)/(2-2*Coef. for blue)
// Cr = (Red-Y)/(2-2*Coef. for red)
// YCbCr -> RGB
// Red = Cr*(2-2*Coef. for red)+Y
// Green = (Y-Coef. for blue*Blue-Coef. for red*Red)/Coef. for green
// Blue = Cb*(2-2*Coef. for blue)+Y
-// RGB-> YCbCr
// Y = Coef. for red*Red+Coef. for green*Green+Coef. for blue*Blue
// Cb = (Blue-Y)/(2-2*Coef. for blue)
// Cr = (Red-Y)/(2-2*Coef. for red)
// YCbCr-> RGB
// Red = Cr*(2-2*Coef. for red)+Y
// Green = (Y-Coef. for blue*Blue-Coef. for red*Red)/Coef. for green
// Blue = Cb*(2-2*Coef. for blue)+Y
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jpg function.txt
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