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March 2007

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2007.03.20 08:55 "TIF IFD pointer", by Sascha Sebastian Willmes
2007.03.20 13:42 "Re: TIF IFD pointer", by Joris Van Damme
2007.03.21 11:41 "Re: OJPEG-in-TIFF uncompress failed.", by Joris Van Damme
2007.03.22 04:39 "Re: OJPEG-in-TIFF uncompress failed.", by Joris Van Damme

2007.03.21 11:41 "Re: OJPEG-in-TIFF uncompress failed.", by Joris Van Damme

Kingore,

yourpattern@126.com wrote:
>     I occasionally encountered an TIFF file which is OJPEG-in-TIFF,
> and it can not be opened by libtiff (ver 3.8.2). the tiff file is in
> the attachment, are there someone who is familiar with OJPEG decoder
> can help me?

LibTiff 3.8.2 contains an OJPEG decoder that is abandoned, because, as you 
say, it doesn't work on some OJPEG images, gives bad quality distorted 
output on some others, and downright crashes on some.

The CVS version of LibTiff contains a new OJPEG decoder that does behave 
properly and is safe to use. If you decide to get the CVS version, note that 
you need to pick the stable branch, as detailed in the CVS instructions on 
the LibTiff homepage http://www.remotesensing.org/libtiff/.


Joris Van Damme
info@awaresystems.be
http://www.awaresystems.be/
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