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计算不同色域下的RGB与YUV 以及 RGB与XYZ互转公式

计算不同色域下的RGB与YUV 以及 RGB与XYZ互转公式

作者: 罗引杰 | 来源:发表于2021-02-24 10:55 被阅读0次

    写了个软件用来计算RGB与YUV互转公式, 输入色彩空间,输出两者互转公式,原理是根据r177协议
    后续我会把代码开源出来

    "BT2020 625 D65"
    Input:
    r=(0.708,0.292)
    g=(0.170,0.797)
    b=(0.131,0.046)
    w=(0.3127,0.3290)

    RGB2XYZ Matrix:
    0.6370, 0.1446, 0.1689
    0.2627, 0.6780, 0.0593
    0.0000, 0.0281, 1.0610

    XYZ2RGB Matrix:
    1.7167, -0.3557, -0.2534
    -0.6667, 1.6165, 0.0158
    0.0176, -0.0428, 0.9421

    RGB2YUV Matrix:
    0.2627, 0.6780, 0.0593
    -0.1396, -0.3604, 0.5000
    0.5000, -0.4598, -0.0402

    YUV2RGB Matrix:
    1, 0, 1.4746
    1, -0.1646, -0.5714
    1, 1.8814, 0


    "BT601 625 D65"
    Input:
    r=(0.64,0.33)
    g=(0.29,0.60)
    b=(0.15,0.06)
    w=(0.3127,0.3290)

    RGB2XYZ Matrix:
    0.4306, 0.3415, 0.1784
    0.2220, 0.7067, 0.0713
    0.0202, 0.1296, 0.9393

    XYZ2RGB Matrix:
    3.0634, -1.3934, -0.4758
    -0.9692, 1.8760, 0.0416
    0.0679, -0.2288, 1.0691

    RGB2YUV Matrix:
    0.2220, 0.7067, 0.0713
    -0.1195, -0.3805, 0.5000
    0.5000, -0.4542, -0.0458

    YUV2RGB Matrix:
    1, 0, 1.5560
    1, -0.1875, -0.4888
    1, 1.8573, 0


    "BT601 525 D65"
    Input:
    r=(0.63,0.34)
    g=(0.31,0.595)
    b=(0.155,0.070)
    w=(0.3127,0.3290)

    RGB2XYZ Matrix:
    0.3935, 0.3653, 0.1917
    0.2124, 0.7011, 0.0866
    0.0187, 0.1119, 0.9584

    XYZ2RGB Matrix:
    3.5060, -1.7398, -0.5441
    -1.0690, 1.9778, 0.0352
    0.0563, -0.1970, 1.0500

    RGB2YUV Matrix:
    0.2124, 0.7011, 0.0866
    -0.1163, -0.3837, 0.5000
    0.5000, -0.4450, -0.0550

    YUV2RGB Matrix:
    1, 0, 1.5752
    1, -0.2256, -0.4772
    1, 1.8269, 0


    "BT709 sRGB D65"
    Input:
    r=(0.64,0.33)
    g=(0.30,0.60)
    b=(0.15,0.06)
    w=(0.3127,0.3290)

    RGB2XYZ Matrix:
    0.4124, 0.3576, 0.1805
    0.2126, 0.7152, 0.0722
    0.0193, 0.1192, 0.9505

    XYZ2RGB Matrix:
    3.2410, -1.5374, -0.4986
    -0.9692, 1.8760, 0.0416
    0.0556, -0.2040, 1.0570

    RGB2YUV Matrix:
    0.2126, 0.7152, 0.0722
    -0.1146, -0.3854, 0.5000
    0.5000, -0.4542, -0.0458

    YUV2RGB Matrix:
    1, 0, 1.5747
    1, -0.1873, -0.4682
    1, 1.8556, 0


    "NTSC C"
    Input:
    r=(0.6700,0.3300)
    g=(0.2100,0.7100)
    b=(0.1400,0.0800)
    w=(0.31006,0.31616)

    RGB2XYZ Matrix:
    0.6069, 0.1735, 0.2003
    0.2989, 0.5866, 0.1145
    -0.0000, 0.0661, 1.1162

    XYZ2RGB Matrix:
    1.9101, -0.5325, -0.2882
    -0.9846, 1.9991, -0.0283
    0.0583, -0.1184, 0.8976

    RGB2YUV Matrix:
    0.2989, 0.5866, 0.1145
    -0.1688, -0.3312, 0.5000
    0.5000, -0.4184, -0.0816

    YUV2RGB Matrix:
    1, 0, 1.4022
    1, -0.3456, -0.7145
    1, 1.7710, 0

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