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January 2004
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2004.01.23 20:30 "Re: How to convert MINISBLACK to PHOTOMETRIC_RGB", by Bob Friesenhahn
On Fri, 23 Jan 2004, Chris Cox wrote: > > > > I am by no means an authority on the TIFF specification. My interpretation > > of the file in question is that a sensible application should render the > > first band in greyscale and ignore the 2nd and 3rd since they are > > extra samples > > with no meaning attached. > > Or load the 2nd and 3rd channels as alpha (not transparency) channels > -- as Photoshop does. > > It would be incorrect to interpret this image as RGB. How does Photoshop treat a second alpha channel? Does it actually get used for anything? Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us http://www.simplesystems.org/users/bfriesen