Some people are interested in TIFF test images in order to test their
own software, or to see what is possible with the TIFF format (and
libtiff, which makes this all reasonably possible).
I have added a 'genimages' shell script to the GraphicsMagick source
tree in the utilities/tests/gen-tiff-images subdirectory which uses
GraphicsMagick (a common Q16, or preferably a Q32 build) to produce
736 permutations of uncompressed TIFF/BigTIFF files.
On my laptop, this script produces 3.4G of files in just a few
minutes.
The README.txt file in that directory
(https://hg.osdn.net/view/graphicsmagick/GM/file/tip/utilities/tests/gen-tiff-images/README.txt)
provides instructions as well as a summary of current output.
Few of the generated files can be described as "baseline" TIFF and
many are quite esoteric, with unusual bit depths, and floating point
formats (unfortunately, not HDR). Indeed, most software will not be
able to read most of the files.
Since this is just a shell script, someone can modify it to do
whatever they like such as to also produce compressed files or play
with strip/tile options, or change image dimensions. The TIFF format
is remarkably flexible so it would be easy to produce 10x (or 100x)
more output sub-formats in order to exercise corner-cases.
Bob
--
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt
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