David Kirtley wrote: > I seem to have found an odd behavior in the equalization. > > I created a series of test images with PIL for a demonstration: > a 300x300 RGB image with three bars of gray with offsets of 20 in > all three channels > with starting values of 0 to 200 in steps of 50. > > I expected the equalization routine to move them to 0, 128, 255 as per > the definition of Histogram Equailzation but to my suprise the > equalization routine decides to instead > set them to 0, 85, 170. > > Is this intended functionality? Is this a bug/feature? :)
looks like an off-by-one error (note that 170+85=255). should only cause problems for extreme cases, and should be trivial to fix. I'll into this for 1.1.6 (patches are welcome). </F> _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig
