Yes, I am trying to write a OCR algorithm with neural network, but the theories of NN is of little importance, what I am trying to get ready for the project is run speed.
the problem comes in a number of ways: first, as you mentioned, image.getpixel is not very fast, according to PIL http://www.pythonware.com/products/pil/ so an alternative should be searched for, also, I loop (x,y) x = 0 -1023 y = 0- 768 through and currently i use this: x = 0 y = 0 for x in xrange(1, 1024, 1): for y in xrange(1, 768, 1): rgb = image.getpixel ((10, 12)) according to http://www.python.org/doc/essays/list2str.html a while loop is slow than for, and then map is faster. as for that this: image.getpixel ((10, 12)) currently i only use the shell window itself, so i can't really loop 1024*768, that's why it's only 10 12,
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