hi Which part do i get wrong... If i open an image in "I" mode (which is 32bit) and make a histogram, shouldnt the histogram contain 768 elements? In other words... how can i make a histogram at 32bit color res? (256 colors histogram sucks for photographs)... the only option i can think of, is a triple 'for' loop in RGB histogram, but it's too slow... id be very grateful for help :) _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig