AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

1994.09.20 03:03 "TIFF CIEL*a*b* Question (with Answer)", by John M Davison
1994.09.20 07:53 "Re: TIFF CIEL*a*b* Question (with Answer)", by Fredrik Lundh
1994.09.22 08:31 "Re: TIFF CIEL*a*b* Question (with Answer)", by Karsten Spang
1994.09.22 10:13 "A note on (group4) compatibility issues", by Fredrik Lundh
1994.09.22 14:48 "RE: TIFF CIEL*a*b* Question (with Answer)", by Craig Jackson
1994.09.22 15:19 "Re: TIFF CIEL*a*b* Question (with Answer)", by Sam Leffler

1994.09.22 10:13 "A note on (group4) compatibility issues", by Fredrik Lundh

But don't ship such files outside your office... When using Compression=3 or 4, I'd stick to SamplesPerPixel=1, PhotometricInterpretation=0, and RowsPerStrip=ImageLength!

WHAT? You can't be serious! What if your ImageLength and ImageWidth is 10000, 20000, or more? For G3 compression you should stick to the "8k" rule for RowsPerStrip.

True. But as long as I have to cope with the universe of broken TIFF G3/G4 readers out there, I'll stick to my own rule. Some readers messes up on Photometric=1, some on striped files, some on files where the TIFF directory is larger than 1024 bytes, some on compression=2 but not on compression=3, some on...

Guess too many TIFF hackers test their readers only with output from their writers. And here I am, stuck in the middle... But yes, things are getting better :-)

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