2005.11.07 20:31 "Re: [Tiff] Writing bilevel and transparent TIFFs efficiently", by Bob Friesenhahn

It is possible to use an associated alpha channel with palette (PHOTOMETRIC_PALETTE) images,

Is it? I'm not entirely convinced.

I did not see anything in the specification which specifically forbids it. However, it is much easer to read such files than to write them since writing them requires computing a palette which is conjoined with the alpha channel. A very ugly thing indeed.

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