AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2008.09.23 23:34 "[Tiff] TIFF Image Quality Question", by Rick Cone, Secure Payment Systems
2008.09.24 00:11 "Re: [Tiff] TIFF Image Quality Question", by Bob Friesenhahn
2008.10.01 23:18 "Re: [Tiff] Image Orientation tag and rotating images", by Richard Nolde
2008.10.01 03:03 "[Tiff] Image Orientation tag and rotating images", by Richard Nolde
2008.10.01 12:38 "Re: [Tiff] Image Orientation tag and rotating images", by Dr. Michael J. Chudobiak
2008.10.01 14:25 "Re: [Tiff] Image Orientation tag and rotating images", by Richard Nolde
2008.10.01 16:32 "Re: [Tiff] Image Orientation tag and rotating images", by Richard Nolde
2008.10.01 18:59 "Re: [Tiff] Image Orientation tag and rotating images", by Dr. Michael J. Chudobiak
2008.10.02 05:43 "Re: [Tiff] Image Orientation tag and rotating images", by Andrey Kiselev
2008.10.01 15:08 "Re: [Tiff] Image Orientation tag and rotating images", by Bob Friesenhahn
2008.10.01 16:02 "Re: [Tiff] Image Orientation tag and rotating images", by Edward Lam
2008.10.02 02:42 "Re: [Tiff] Image Orientation tag and rotating images", by Bob Friesenhahn
2008.09.24 01:14 "Re: [Tiff] TIFF Image Quality Question", by Phillip Crews

2008.10.02 02:42 "Re: [Tiff] Image Orientation tag and rotating images", by Bob Friesenhahn

Since my code works with 1,2,4,8, and 16 bit data, the only cases that I suspect will be an issue are floating point images. If anyone has a small image with floating point data, I would be interested in seeing what adjustments are needed. Which viewers can be used to display TIFFs with floating point data?

There is a floating point image included in the libtiff sample images. GraphicsMagick is able to display it although it requires some manual parameters to get the levels right (the file ranges between 0.0 and 720.0 or so) and does not pay any attention to rotation requests.

I did recently create a new collection of sample TIFF images, including floating point ones, and put them out for ftp as "ftp://ftp.graphicsmagick.org/pub/outgoing/tiff-sample-images.tar.bz2" or "ftp://ftp.graphicsmagick.org/pub/outgoing/tiff-sample-images.tar.gz". These ones are little endian.

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