Re: [Matplotlib-users] [Matplotlib-announce] Saving image in .jpeg format

[John Hunter]

On Thu, Jan 15, 2009 at 7:56 AM, Michael Droettboom <md...@stsci.edu> wrote:
> The matplotlib-announce list is for announcements about releases of
> matplotlib and related projects only.  Please ask user questions on
> matplotlib-users.  (I have forwarded this message there).
>
> There is a table of which output formats are supported by each backend here:
>
> http://matplotlib.svn.sourceforge.net/viewvc/matplotlib/trunk/matplotlib/FILETYPES?revision=3801&view=markup
>
> GtkAgg should be your best bet, but due to its reliance on Gtk, it can't
> be run on a headless server.  If you need to run in such a mode (such as
> on a webserver), your best bet is probably to use Agg, save to png, and
> use PIL or ImageMagick etc. to convert afterward.

You may want to reevaluate *why* you need jpeg.  We have intentionally
not provided a jpg output because png is so much better for graphs and
text.  If all you are doing is image processing of natural scenes,
then yes jpeg is better in most cases, but if you are making graphs
which is the bread and butter of matplotlib, then png will be
superior.


JDH

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