find all color in image python
>>> from PIL import Image >>> im = Image.open('polar-bear-cub.jpg') >>> from collections import defaultdict >>> by_color = defaultdict(int) >>> for pixel in im.getdata(): ... by_color[pixel] += 1 >>> by_color defaultdict(<type 'int'>, {(11, 24, 41): 8, (53, 52, 58): 8, (142, 147, 117): 1, (121, 111, 119): 1, (234, 228, 216): 4