[Image-SIG] zlib.error -5 in PIL 1.1.7b1

[Fredrik Lundh]

1.1.7 attempts to read and decompress the file's ICC tag, while 1.1.6
completely ignored that.  I seem to remember fixing something related
to this after the 1.1.7b1 release, but I'll double-check before
cutting the final branch (any day soon).

</F>

On Fri, Aug 21, 2009 at 4:04 PM, Joel Verhagen<joel.verhagen at gmail.com> wrote:
> I'm using PIL version 1.1.7b1 and when setting the mode of this image to RGB
> (http://img197.imageshack.us/img197/8961/111294.png)
>
> img = Image.open('111294.png')
> img.convert('RGB')
>
> And it throws the following error:
>
> Traceback (most recent call last):
>   File "F:\4scrape\ScrapeDex\swatch prominence\test.py", line 44, in
> <module>
>     img = Image.open(image)
>   File "C:\Python26\lib\site-packages\PIL\Image.py", line 1965, in open
>     return factory(fp, filename)
>   File "C:\Python26\lib\site-packages\PIL\ImageFile.py", line 91, in
> __init__
>     self._open()
>   File "C:\Python26\lib\site-packages\PIL\PngImagePlugin.py", line 321, in
> _open
>     s = self.png.call(cid, pos, len)
>   File "C:\Python26\lib\site-packages\PIL\PngImagePlugin.py", line 112, in
> call
>     return getattr(self, "chunk_" + cid)(pos, len)
>   File "C:\Python26\lib\site-packages\PIL\PngImagePlugin.py", line 193, in
> chunk_iCCP
>     self.im_info["icc_profile"] = zlib.decompress(s[i+2:])
> zlib.error: Error -5 while decompressing data
>
> When doing this same process with PIL 1.1.6 final, no error is thrown. The
> image link above is the exact copy of the failing image, so you can use it
> for diagnostics.
> --
> Joel Verhagen
> http://www.wintallo.com
>
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