LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
September 2004
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2004.09.02 15:05 "Re: 16bit compressed colormaps", by Julien Demaria
Hi, In the TIFF specifications 6 page 23 I see that for Palette Color images the BitsPerSample tag should be 4 or 8, but not 16. But it is allowed by libtifff. Are 16 bit images with colormap "standards" ? (note that in TIFF spec. RGB images should be only 8bits I believe (page 24)). By experience I know that Erdas support them. I think 16 bit images with colormap aren't recommended for general interchange (some peoples wanted use them in one of our project, but I have discouraged them... (the reason was that they want to be able to keep the physical value on 16 bit and also display the image with a special palette...)). Regards, Julien