Hi all, Last time I checked PIL was not able to apply lossless transformations to jpeg images so I've created Python bindings (or is it a wrapper? I never knew the difference :)) for the jpegtran utility of the Independent Jpeg Group.
The jpegtran utility is written in C and is very efficient, fast and robust. It can rotate, flip, transpose and transverse jpeg images in a lossless way, see www.ijg.org for more details. The bindings allow you to use all jpegtran features from Python. Downloads are here: http://ebiznisz.hu/python-jpegtran/ Any feedback is very welcome, especially if you are able to compile it on non-standard platforms. It has been tested on Linux and Python 2.3. Usage example: import jpegtran transformer = jpegtran.transformer( ) transformer.rotate( 90, 'pic.jpg', 'pic_rotated.jpg' ) transformer.flip( 'horizontal', 'pic.jpg', 'pic_flipped.jpg' ) transformer.transpose( 'pic.jpg', 'pic_transposed.jpg' ) transformer.transverse( 'pic.jpg', 'pic_transversed.jpg' ) transformer.gray( 'pic.jpg', 'pic_gray.jpg' ) -- http://mail.python.org/mailman/listinfo/python-list
