2005.03.17 22:49 "Re: [Tiff] Photoshop Masked area TIFF images", by Bob Friesenhahn
Does anyone has ever seen a TIFF file with a transparency mask? And do you know commercial softwares dealing with transparency masks.
I assume that you are talking about an image which contains a second bilevel TIFF frame with photometric set to PHOTOMETRIC_MASK (4)?
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/