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changes-.3
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$Header: /usr/people/sam/tiff/RCS/CHANGES-v2.3,v 1.2 90/11/25 11:37:32 sam Exp $
TIFF Software "Release" 2.3
---------------------------
Changes in libtiff:
o 2d Group 3 and Group 4 fax encoding/decoding are now suported
o a new API routine TIFFFdOpen was added -- it opens
a TIFF file given a file descriptor
o the Group 3 algorithms have been changed to use some tables;
this represents a tradeoff of increased space for lower time
o support has been added for decoding compression algorithms 2 & 32771
o the calculation used to guess the amount of data in a strip
when the StripByteCounts tag is missing has been made more
intelligent (or so we think)
o a missing return statement at the bottom of TIFFDefaultDirectory
has been added (mostly broke SPARC-based systems)
Changes in the tools:
o fax2tiff now handles 2d encoded input data and can
generate a Group 4 encoded TIFF file
o tiffcmp now handles files that don't have
BitsPerSample and/or SamplesPerPixel tags
o tiffcp has -g3 and -g4 options for generating Group 3+4
compressed images; -2d and -fill options were also added
for setting these Group 3-related options
o tiffdither has a new -p option for setting the Group 3 fill
option; it also now handles files w/o a BitsPerSample tag
o tiffinfo now properly handles the directory number option
o tiffmedian now handles files that don't have a BitsPerSample tag
o Chip Chapin contributed a new version of contrib.xtiff
o Chris & Dan Sears contributed a new version of contrib.dbs/xtiff
Changes in the doc directory:
o ClassF.txt has been updated