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Date: Thu, 10 Dec 1998 08:10:57 -0500
From: Thad Humphries <thad@blueridge.com>
Subject: Re: OJPEG_SUPPORT in 3.4b37
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To: "Thies C. Arntzen" <thies@digicol.de>
Cc: tiff@sgi.com, jpeg-l@ijg.org
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>crosspost TIFF/JPEG--lists ....
>
>
>hi there,
>
>(please cc replies to thies@digicol.de)
>
>i'm getting some weird photo-wire-agency pictures from japan (their name
>is KYODO). the file is one "large" IPTC style file with 2 subfiles -
>
>i can extract those subfiles from the IPTC with no problem - what i get
>are two TIF files.
>
>but i cannot process those using the latest tiff library (JPEG-Support
>enabled).
>
>i've tried to enable OJPEG_SUPPORT - but i can't find the needed
>TIFFInitOJPEG() function anywhere in the source code....
>
>is there anybody out there that has successfully worked with libtiff and
>old-style-jpegs???

The answer I hear is that OJPEG support does not work because of conflicts
in the spec.  You might try what I did--closely examine the way OJPEG was
implemented in the files you must work with, extract from them a JPEG file
which you write to a temp file on disk, then do the decompression with
libjpeg.

--------------------------------------------------------------------------
Thad Humphries                              "Microsoft... What do you want
Software Engineer (aka, Nerd)                to reinstall today?"
Phone: 540/675-3015, ext. 225                                    - Unknown


