The Python Imaging Library currently only supports 3x3 and 5x5 image filters. Here's a module which uses numpy and the FFT to compute filters of arbitrary size:
http://barnesc.blogspot.com/2007/09/filter-numpy-images-with-fft-python.html For an image and filter which contain a total of N pixels overall, it runs in O(N*log(N)) time; however, numpy's FFT isn't too fast and so in practice other methods may be more appropriate to compute filters quickly, as described in the blog post linked above. Connelly Barnes http://www.connellybarnes.com/ ____________________________________________________________________________________ Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase. http://farechase.yahoo.com/ _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig
