multicolorfits.rgb_to_ryb

multicolorfits.rgb_to_ryb(rgb)

Vectorized sRGB -> RYB conversion (Sugita & Takahashi 2017).

Parameters:

rgb (numpy.ndarray) – Array with last axis of length 3, values in [0, 1].

Returns:

numpy.ndarray – RYB array of the same shape, values in [0, 1]. Note the subtractive convention: RGB black -> RYB (1,1,1); RGB white -> RYB (0,0,0).