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[stani <spe.stani.be@xxxxxxxxx>]

Phatch uses PIL as a backend, which does not support such images:
In [1]: import Image

In [2]: im = Image.open('IMGP7504.tif')
---------------------------------------------------------------------------
IOError                                   Traceback (most recent call last)

/media/16gb/Downloads/<ipython console> in <module>()

/usr/lib/python2.5/site-packages/PIL/Image.pyc in open(fp, mode)
   1915             pass
   1916 
-> 1917     raise IOError("cannot identify image file")
   1918 
   1919 #

IOError: cannot identify image file

Also Phatch clearly states on its feature set that it only supports up to 32 bits.
http://photobatch.wikidot.com/features

So this is not a bug but a feature request. It might help if you find
(python) image processing libraries which support 48 bit
(imagemagick?!). We might integrate them in Phatch.

Thanks for reporting the bug anyway!

** Changed in: phatch
   Importance: Undecided => Low

** Changed in: phatch
       Status: New => Won't Fix

** Changed in: phatch
     Assignee: (unassigned) => stani (stani)

-- 
16 bit per channel images not supported (at least not tiff)
https://bugs.launchpad.net/bugs/395668
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Status in Phatch = Photo & Batch!: Won't Fix

Bug description:
Phatch bzr929 does not support 16 bit per channel TIFF images, and possibly any other 48bpp image format.

Sample 48bpp file: http://fileupl.com/down.php?i=lwtvpd&n=IMGP7504.tif