[Image-SIG] PNG Decoder Bug

[Fredrik Lundh]

bernhard wrote:

> PIL has problems decoding some PNG files. An image which PIL fails to
> load can be found at http://intevation.de/~bh/6x2.png .

/.../

> IOError: decoder error -3 when reading image file
> 
> I reported this bug before (or at least a very similar one) back in 1999
> ( http://mail.python.org/pipermail/image-sig/1999-October/000892.html )
> but I ran into it again now. Perhaps someone should set up a bug tracker
> so such bugs aren't forgotten. 

well, it's a known and documented bug.

from the "Image File Formats" chapter:
    The library identifies, reads, and writes PNG files containing

    "1", "L", "P", "RGB", or "RGBA" data. Interlaced files are currently

    not supported.

Cheers /F