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December 2001

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2001.12.12 20:23 "jpeg in tiff problem", by Eric Hamrick
2001.12.13 02:03 "Re: jpeg in tiff problem", by Frank Warmerdam
2001.12.14 01:42 "Re: jpeg in tiff problem", by Tom Lane
2001.12.14 14:00 "Re: jpeg in tiff problem", by Eric Hamrick
2001.12.14 14:23 "Re: jpeg in tiff problem", by Frank Warmerdam

2001.12.12 20:23 "jpeg in tiff problem", by Eric Hamrick

Hi,

I have an imagegear 8 compressed tif containing jpeg
data that I cannot read from with the current tiff library
compiled with jpeg support.  When I read it in, the 
compression type is listed as 7. But when I call 
TIFFReadEncodedStrip on the file I receive
an error from the JpegPreDecode function saying
there is an improper sampling factor. The tif loads
correctly in photoshop 6. And my own 
libtiff created jpeg tifs do not give this error. 
Does anyone have any ideas why I am getting
this error?

Here is the tiff:
http://doc.med.ohio-state.edu/eric/igjpeg.tif

Thanks!

Eric Hamrick