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Thread2005.11.07 20:31 "Re: 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 ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ |
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