Try using Image.ANTIALIAS, I find it has the best quality.
On Wed, Feb 17, 2010 at 3:30 AM, Alec Bennett <wrybr...@gmail.com> wrote: > I'm wondering if anyone has any idea how to get better results from PIL's > rotate() function? No matter what filter I use I'm getting very jagged edges > after rotating an image. > > Here's how I'm invoking the filters: > > pic = pic.rotate(random_rotation, resample=Image.NEAREST, expand=1) > pic = pic.rotate(random_rotation, resample=Image.BILINEAR, expand=1) > pic = pic.rotate(random_rotation, resample=Image.BICUBIC, expand=1) # the > best I think > > I posted a sample app that opens an image and rotates it using each of the > filters. You can see the jagged edges pretty plainly. > > I have a slideshow app that I'm working on where these edges are very > obvious, so I'm wondering if anyone might have any tips on getting better > results from rotate(), or from some other method or module that might do a > better job? > > My very simple sample app that tests each of the filters is here: > > http://sinkingsensation.com/stuff/rotation_test.zip > > > > _______________________________________________ > Image-SIG maillist - image-...@python.org > http://mail.python.org/mailman/listinfo/image-sig > > _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig