For the broadest possible support for OJPEG files the following steps are
necessary:
o Ensure you are able to build with JPEG support (see config.site).
o Uncomment OJPEG="yes" statement in config.site file or
#define OJPEG_SUPPORT somewhere. This can be put in tiffconf.h for
instance.
o Append the jdhuff_add.c code to the end of jdhuff.c within the IJG JPEG
libraries jdhuff.c file and recompile libjpeg (jpeg-6b tested).
o Rebuild cleanly.
OJPEG support implemented by Scott Marovich at HP (marovich@hpl.hp.com).
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For notes on further improved JPEG-in-TIFF support also see the following
bug in bugzilla:
http://bugzilla.remotesensing.org/show_bug.cgi?id=156
