AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2005.03.22 17:20 "[Tiff] tif_jpeg.c and 12bit JPEG Files", by Frank Warmerdam
2005.03.22 18:03 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Lee Howard
2005.03.22 18:17 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Frank Warmerdam
2005.03.22 18:33 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Joris Van Damme
2005.03.22 18:04 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Bob Friesenhahn
2005.03.22 18:10 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Frank Warmerdam
2005.03.22 18:22 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Bob Friesenhahn
2005.03.22 20:00 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by David Gilbert
2005.03.22 20:25 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Bob Friesenhahn
2005.03.22 20:38 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Frank Warmerdam
2005.03.22 21:59 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Bob Friesenhahn
2005.03.22 22:28 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Frank Warmerdam
2005.03.22 22:41 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Bob Friesenhahn
2005.03.29 11:24 "Re[2]: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Jean-Yves Le Ridant
2005.03.29 16:08 "Re[2]: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Bob Friesenhahn
2005.04.01 08:08 "Re[3]: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Jean-Yves Le Ridant
2005.03.22 21:19 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Chris Cox
2005.03.22 21:36 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Bob Friesenhahn
2005.03.31 10:04 "Re[2]: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Jean-Yves Le Ridant
2005.03.22 21:37 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Chris Losinger
2005.03.23 14:08 "RE: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Jeff Mather

2005.03.31 10:04 "Re[2]: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Jean-Yves Le Ridant

Hello Bob,

They are clearly used for remote sensing applications. Intergraph's software supports it.

4:2:2 YUV 10 bit per sample tiled files with MPEG2 compression is a / the standard... In the same "universe" that has driven baseline JPEG in 70/80.

I don't range all those people, trading much resolution and a decent color depth against a slight compression loss, in decerebrated idiots class.

12 bit JPEG in TIFF files were first reported on this list to be "in the wild" about a year ago.

For my use, the question of bit depth that is somewhat "of the past" is less a concern than colorimetrics definition and handling, in tiff and in particular jpegtiff. Typical: on one hand, a RGB TIF with/without tiff colorimetrics tags embedded profile. On the other hand, jpeg YCC with/without chroma downsampling, colorimetric tags, profiles.... Jpeglib - Libtiff - readers - writers who handle what? I mean theory, design...., wanted expected imposed... ( for state of art, sources are online ).

I expect that there are many exotic TIFF formats in use that Photoshop will never support.

One who deal with exotics formats will deal to feed a wiewver with whatever it want. Use old Adobe SDK to add correct suppport for cielab pyramidal jpegtiff files to PSP, for example.

Jean-Yves