AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2009.02.12 21:10 "[Tiff] warning and errors", by Philip Watkinson
2009.02.12 22:53 "Re: [Tiff] warning and errors", by Frank Warmerdam
2009.02.12 23:06 "Re: [Tiff] warning and errors", by Philip Watkinson
2009.02.12 23:56 "Re: [Tiff] warning and errors", by Bob Friesenhahn
2009.02.13 08:21 "Re: [Tiff] warning and errors", by
2009.02.13 15:15 "Re: [Tiff] warning and errors", by Philip Watkinson
2009.02.13 15:57 "Re: [Tiff] warning and errors", by Edward Lam
2009.02.13 18:28 "Re: [Tiff] warning and errors", by Bob Friesenhahn
2009.02.13 17:27 "Re: [Tiff] warning and errors", by Bob Friesenhahn
2009.02.18 21:25 "Re: [Tiff] TIFFWarning() and TIFFError()", by Philip Watkinson
2009.02.18 18:47 "[Tiff] TIFFWarning() and TIFFError()", by Philip Watkinson
2009.02.18 19:58 "Re: [Tiff] TIFFWarning() and TIFFError()", by Bob Friesenhahn
2009.02.18 21:47 "Re: [Tiff] TIFFWarning() and TIFFError()", by Bob Friesenhahn
2009.02.13 00:07 "Re: [Tiff] warning and errors", by Frank Warmerdam
2009.02.13 08:34 "Re: [Tiff] warning and errors", by
2009.02.19 17:17 "[Tiff] Bug in tiff_jpeg.c dealing with pre-subsampled ycbcr data passed to TIFFWriteEncodedXxx", by

2009.02.13 17:27 "Re: [Tiff] warning and errors", by Bob Friesenhahn

On Fri, 13 Feb 2009, Joris Van Damme (AWare Systems) wrote:

TIFF is a very flexible format. There are proprietary usages of TIFF which require special tags in order for the proprietary software to be able to read the file correctly. If a program using libtiff opens one of these files then the result may be gibberish. However, the user is likely to see a wrong looking image.

I humbly dissagree. TIFF only works if you separate the 'nominal' layer from the 'proprietary extension' layer. For example, say some app needs to store

I didn't mean to indicate "approval" for this sort of proprietary usage which leads to gibberish. None of my email indicates approval (or disproval). I simply indicated that such files do exist.

Bob
======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/