如何在python中将RGB转换为CMYK，反之亦然？

如何解决如何在python中将RGB转换为CMYK，反之亦然？

这是Javascript实现的Python端口。

RGB_SCALE = 255
CMYK_SCALE = 100


def rgb_to_cmyk(r, g, b):
    if (r, g, b) == (0, 0, 0):
        # black
        return 0, 0, 0, CMYK_SCALE

    # rgb [0,255] -> cmy [0,1]
    c = 1 - r / RGB_SCALE
    m = 1 - g / RGB_SCALE
    y = 1 - b / RGB_SCALE

    # extract out k [0, 1]
    min_cmy = min(c, m, y)
    c = (c - min_cmy) / (1 - min_cmy)
    m = (m - min_cmy) / (1 - min_cmy)
    y = (y - min_cmy) / (1 - min_cmy)
    k = min_cmy

    # rescale to the range [0,CMYK_SCALE]
    return c * CMYK_SCALE, m * CMYK_SCALE, y * CMYK_SCALE, k * CMYK_SCALE

解决方法

如果我有RGB小数，例如255,165,0，我该怎么做才能将其转换为CMYK？

例如：

>>> red,green,blue = 255,0
>>> rgb_to_cmyk(red,blue)
(0,35,100,0)