2011.06.30 15:48 "Re: [Tiff] Is it possible to read a large tiff image in portions?", by Bob Friesenhahn

To avoid this, I would like to read and process the image in pieces, how should I do this with libtiff?

The functions with "RGBA" in their names are intended for users who want to make a minimal effort. They are best left for trivial applications.

I suggest looking at the documentation for TIFFReadScanline(), TIFFReadEncodedStrip(), and TIFFReadTile() since these will accomplish what you need.

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