[Image-SIG] BUG? PIL does not recognise alpha channel in attached png file

[Justin Smith]

Hi,

The attached image shows an alpha channel when viewed with gimp or eog, 
but not when loading with PIL (version 1.1.6-3ubuntu1 as supplied with 
Ubuntu Karmic AMD64 Desktop):


 >>> import Image
 >>> im = Image.open("seabreeze.png")
 >>> print im.format
PNG
 >>> print im.size
(599, 264)
 >>> print im.mode
RGB


When I save the file using im.save(), and then open with gimp or eog, 
the alpha channel is removed (to be expected given that the mode is read 
as RGB).

Is this is a bug?


Cheers,
Justin.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: seabreeze.png
Type: image/png
Size: 14741 bytes
Desc: not available
URL: <http://mail.python.org/pipermail/image-sig/attachments/20100126/3a6185f6/attachment-0001.png>