On Mar 12, 10:26 am, Larry <[EMAIL PROTECTED]> wrote: > I'm new to Python. I have a file (an image file actually) that I need > to read pixel by pixel. It's an 8-bit integer type. I need to get the > statistics like mean, standard deviation, etc., which I know a little > bit already from reading numpy module. What I want to know is how to > get the number of occurences of numeric element in an array. Say,
Something like this should do the job: histogram = [0] * 256 for x in my_array: histogram[x] += 1 -- Paul Hankin -- http://mail.python.org/mailman/listinfo/python-list