2008.12.11 00:12 "[Tiff] TIFF sample images updated", by Bob Friesenhahn

2008.12.30 16:25 "Re: [Tiff] scanline v/s striped", by Bob Friesenhahn

am trying to use tiffdither utility to convert 8-bit grayscale tif image

> to 1-bit bi-level tif image with CCITT Group 3 compression. I am able to

generate the tif files but, when viewd the resulting image on Windows, the image viewer shows foreground and background colors reversed. What might be wrong?

The Windows TIFF viewer you are using is likely ignoring the TIFF photometric. Perhaps it is assuming MINISWHITE but the file is using MINISBLACK. Your 8-bit grayscale TIFF image was likely using MINISBLACK.

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