Re: Problem with optimize flag and GIF encoder
Ian Ward <[email protected]>
| Newsgroups | gmane.comp.python.image |
|---|---|
| Message-ID | <[email protected]> |
It is listed under 1.2a3/1.2b1 here: http://effbot.org/zone/pil-changes-113.htm But you're right, I might suggest they generate png thumbnails instead. Ian Fredrik Lundh wrote: > Hmm. PIL doesn't officially support "optimize" for GIF files: > > http://effbot.org/imagingbook/format-gif.htm > > so maybe this is some partially implemented feature that's been hiding > in there for ages. I'm not sure GIF is such a great format for > thumbnails anyway; maybe the toolkit should be tweaked to render any > 8-bit thumbnail as PNG instead? > > </F> > > On Sat, Nov 28, 2009 at 5:44 AM, Ian Ward <[email protected]> wrote: >> Hello, >> >> I am running python 2.5 and PIL 1.1.6 on Debian Lenny, and I've found >> that using the optimize flag when creating GIF files can create invalid >> images. An example: >> >>>>> im = Image.new('RGB', (20,44)) >>>>> im.save('test.gif', optimize=True) >>>>> im2 = Image.open('test.gif') >> Traceback (most recent call last): >> File "<stdin>", line 1, in <module> >> File "/usr/lib/python2.5/site-packages/PIL/Image.py", line 1917, in open >> raise IOError("cannot identify image file") >> IOError: cannot identify image file >> I came across this problem using django-filebrowser, which has >> optimize=True as a default for creating thumbnails of all image formats.. >> >> Ian >> >> (sorry if this message gets posted twice, I'm resending 20h after my >> first attempt) >> _______________________________________________ >> Image-SIG maillist - [email protected] >> http://mail.python.org/mailman/listinfo/image-sig >> _______________________________________________ Image-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/image-sig