A simple questions really. If you crop a jpeg image using the Python Imaging Library, is the resulting image recompressed, or is it lossless?
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A simple questions really. If you crop a jpeg image using the Python Imaging Library, is the resulting image recompressed, or is it lossless?
Generally not. There is a python wrapper for the lossless jpeg library.
Cropping might be essentially lossless if you remove entire 8×8 pixel blocks