lossless transformation of jpeg images

[jim-on-linux]

On Sunday 29 October 2006 15:17, Daniel Nogradi 
wrote:
> > 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.


Why not use Tkinter for jpeg ??


jim-on-linux

http://www.inqvista.com




> >
> > 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' )
>
> Oh, I forgot to mention that this is a very
> preliminary release, there is no support for
> distutils or any other intelligent packaging
> tool, it uses 'make' so probably will only work
> on Unix flavours. Although it should compile on
> Windows as well.