AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2008.11.21 16:50 "[Tiff] 24 bit Color to 8 bit Palettized Conversion Utility (tiffcp enhancement/variation?)", by Kevin Myers
2008.11.21 17:29 "Re: [Tiff] 24 bit Color to 8 bit Palettized Conversion Utility (tiffcp enhancement/variation?)", by Frank Warmerdam
2008.11.21 18:49 "Re: [Tiff] 24 bit Color to 8 bit Palettized Conversion Utility (tiffcp enhancement/variation?)", by Bob Friesenhahn
2008.11.21 19:11 "Re: [Tiff] 24 bit Color to 8 bit Palettized Conversion Utility (tiffcp enhancement/variation?)", by Bob Friesenhahn
2008.11.21 19:37 "Re: [Tiff] 24 bit Color to 8 bit Palettized Conversion Utility (tiffcp enhancement/variation?)", by Kevin Myers
2008.11.21 21:27 "[Tiff] Re: RGB to palette images", by Richard Nolde
2008.11.21 21:45 "Re: [Tiff] Re: RGB to palette images", by Kevin Myers
2008.11.21 21:56 "Re: [Tiff] Re: RGB to palette images", by Bob Friesenhahn
2008.11.21 22:12 "Re: [Tiff] Re: RGB to palette images", by Toby Thain
2008.11.21 23:51 "Re: [Tiff] Re: RGB to palette images", by Kevin Myers
2008.11.21 21:54 "Re: [Tiff] Re: RGB to palette images", by Frank Warmerdam
2008.11.21 22:24 "Re: [Tiff] Re: RGB to palette images", by Bob Friesenhahn
2008.11.21 22:46 "Re: [Tiff] Re: RGB to palette images", by Kevin Myers

2008.11.21 22:24 "Re: [Tiff] Re: RGB to palette images", by Bob Friesenhahn

In the interest of completeness, the normal libtiff command for this tiffmedian. It does not require holding the whole image in RAM. task is

However, it will not exactly preserve the color list from an RGB image with

a very limited number of unique colors (as described) so it is likely not
solution for the problem. a great

I see that it is very fast (< 4 seconds for 2029x100942 image). 16 color output does not look great, 256 color output looks better. A problem is that it currently does not accept JPEG-compressed TIFF.

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