2005.03.22 18:45 "[Tiff] Interface to query compression/subformat parameters", by Bob Friesenhahn
Libtiff does not appear to provide a way by which the dependent application may determine the supported TIFF encoding formats, parameters supported by those encoding formats. It also does not appear to provide a way to determine the available compression options. For example, I don't see a way to see if LZW compression is supported by libtiff.
The ability to query for this information should be added so that libtiff becomes easier to use in open-source environments where the author of the dependent application is not also responsible for providing libtiff.
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/