saturation.py 文件源码

def rgb2lch(rgb):
    """Convert RBG to LCH colorspace (via LAB)
    Input and output are in (bands, cols, rows) order
    """
    # reshape for skimage (bands, cols, rows) -> (cols, rows, bands)
    srgb = np.swapaxes(rgb, 0, 2)
    # convert colorspace
    lch = lab2lch(rgb2lab(srgb))
    # return in (bands, cols, rows) order
    return np.swapaxes(lch, 2, 0)