I have python code that needs to do just a couple simple things to photographs: crop, resize, and overlay a watermark. I\'ve used PIL, and the resample/resize results are TERRIB
Take a look at some of these imaging libraries:
hxxp://pypi.python.org/pypi/collective.croppingimagefield/0.1beta
hxxp://pypi.python.org/pypi/cropresize/0.1.1
hxxp://pypi.python.org/pypi/image_resize/1.0