2006.11.24 23:06 "Re: [Tiff] Windows HD Photo - any interest?", by Bob Friesenhahn
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I don't think that any of this says that the codec couldn't be used in libtiff. Probably worth a clarification though.
Currently libtiff does not contain any algorithms protected by a patent (to the best of our knowledge). This allows it to be distributed for any application. Is the Windows HD Photo codec protected by any Microsoft (or other vendor ) patents?
The JBIG2 codec is also interesting, but implementing support for it is discouraged by protective patents.
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/