hue

There is Python code to convert RGB to HSV (and vice versa) in the colorsys module in the standard library. My first attempt used rgb_to_hsv=np.vectorize(colorsys.rgb_to_hsv) hsv_to_rgb=np.vectorize(colorsys.hsv_to_rgb) to vectorize those functions. Unfortunately, using np.vectorize results in rather slow code. I was able to obtain roughly a 5 times speed up by translating colorsys.rgb_to_hsv and colorsys.hsv_to_rgb into … Read more