My brother emails me tiffs of magazine articles from work generated by
the scanning system they have in place there. They always have this
problem. He's not very tech-savvy, so he may not be able to configure
the system to generate proper tiffs.

Anyway, I've gone through the trouble of compiling libtiff with the "old jpeg" 
support after patching and recompiling libjpeg. After doing this, I still can't 
view the file:
[EMAIL PROTECTED]:/tmp$ /tmp/jpg/bin/tiffinfo ~/Desktop/WELL\ LET\ ME.tif 
TIFFReadDirectory: Warning, /home/burner/Desktop/WELL LET ME.tif: unknown field 
with tag 37679 (0x932f) encountered.
TIFFReadDirectory: Warning, /home/burner/Desktop/WELL LET ME.tif: unknown field 
with tag 37680 (0x9330) encountered.
TIFFReadDirectory: Warning, /home/burner/Desktop/WELL LET ME.tif: unknown field 
with tag 37681 (0x9331) encountered.
/home/burner/Desktop/WELL LET ME.tif: Invalid YCbCr subsampling.
TIFFReadDirectory: /home/burner/Desktop/WELL LET ME.tif: cannot handle zero 
strip size.

As you can see, the last 3 unknown fields are present, but I've managed
to get libtiff to understand the takes 513 and 514. Sadly, I still can't
get the data out.

I've collected information on this from the following links (for those that may 
find this bug report in the future):
http://bugzilla.remotesensing.org/show_bug.cgi?id=156
http://www.awaresystems.be/imaging/tiff/tifftags/jpeginterchangeformat.html
http://www.remotesensing.org/libtiff/TIFFTechNote2.html

I've gone so far as to run Windows' own tiff viewer, and that still
couldn't extract the image data.

End result: if you get your hands on one of these "old style jpeg in
tiff" files, you're pretty much out of luck. You'll have to negotiate
with the file supplier to provide it in a different format.

-- 
crash in tiff loader
https://launchpad.net/bugs/18289

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