Hi, and thanks for the suggestion! > How many bits per pixel does your camera actually generate !? > If its for example a 12 bit camera, you could just fill in directly > into 4096 preallocated bins. > You would not need any sorting !! > That's what I did for a 16 bit camera -- but I wrote it in C and I had > 4 cameras at 30 Hz.
That approach avoids the bin-index calculation line: indices = numpy.clip(((array.astype(float) - min) * bins / (max - min)).astype(int), 0, bins-1) But even if indices = array, one still needs to do something like: for index in indices: histogram[index] += 1 Which is slow in python and fast in C. I'm guessing that there's no utility function in numpy that does a loop like this? If so, that would be handy, but if now, I think I need to dig out the numpy book and write a little extension... Zach _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
