2004.05.11 14:25 "Re: [Tiff] Tiff questions", by Bob Friesenhahn

You might consider using the "Pyramid" TIFF scheme supported by ImageMagick/GraphicsMagick ("PTIF" format). This scheme is a bit

Where does the code reside especially? Are You using IFDs or subIFDs?

The code resides in coders/tiff.c in ImageMagick or GraphicsMagick as obtained from CVS or a source distribution. Without reviewing the code and learning what IFDs/subIFDs are, I can't answer the second question.

The writing is done by WritePTIFImage, but this is just a simple wrapper which successively reduces the image size and hands off the work to the normal TIFF writer, with tiling enabled.

This code was written by Bill Radcliffe, who may still be lurking on this list.

Bob

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