AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2004.09.01 23:35 "[Tiff] Tiff2Pdf bug", by Joris Van Damme
2004.09.02 00:12 "Re: [Tiff] Tiff2Pdf bug", by Ross A. Finlayson
2004.09.02 01:00 "Re: [Tiff] Tiff2Pdf bug", by Joris Van Damme
2004.09.02 01:07 "Re: [Tiff] Tiff2Pdf bug", by Chris Cox
2004.09.02 13:57 "RE: [Tiff] Tiff2Pdf bug", by Fernando Loygorri
2004.09.02 14:11 "[Tiff] 16bit compressed colormaps", by Frank Warmerdam
2004.09.02 15:05 "Re: [Tiff] 16bit compressed colormaps", by Julien Demaria
2004.09.02 15:40 "Re: [Tiff] 16bit compressed colormaps", by Joris Van Damme
2004.09.02 15:22 "Re: [Tiff] 16bit compressed colormaps", by Bob Friesenhahn
2004.09.02 15:43 "Re: [Tiff] 16bit compressed colormaps", by Joris Van Damme
2004.09.02 16:20 "Re: [Tiff] 16bit compressed colormaps", by Bob Friesenhahn
2004.09.02 16:36 "RE: [Tiff] 16bit compressed colormaps", by Steve Eddins
2004.09.02 17:27 "Re: [Tiff] 16bit compressed colormaps", by Bob Friesenhahn
2004.09.02 18:02 "Re: [Tiff] 16bit compressed colormaps", by Frank Warmerdam
2004.09.02 18:43 "Re: [Tiff] 16bit compressed colormaps", by Bob Friesenhahn
2004.09.02 18:12 "Re: [Tiff] 16bit compressed colormaps", by Joris Van Damme
2004.09.02 17:38 "Re: [Tiff] 16bit compressed colormaps", by Chris Cox
2004.09.02 14:38 "RE: [Tiff] Tiff2Pdf bug", by Bob Friesenhahn
2004.09.02 17:37 "RE: [Tiff] Tiff2Pdf bug", by Chris Cox
2004.09.02 20:35 "Re: [Tiff] Tiff2Pdf bug / BigTIFF", by Frank Warmerdam
2004.09.02 03:30 "Re: [Tiff] Tiff2Pdf bug", by Joris Van Damme

2004.09.02 15:05 "Re: [Tiff] 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