AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2005.05.25 09:52 "[Tiff] How to Write a tif file with compression = COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Kelvin Zhong
2005.05.25 10:41 "Re: [Tiff] How to Write a tif file with compression = COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Jean-Yves Le Ridant
2005.05.26 01:50 "Re: [Tiff] How to Write a tif file with c ompression = COMPRESSION_JPEG & photometr ic = PHOTOMETRIC_YCBCR ?", by Kelvin Zhong
2005.05.26 08:37 "Re[2]: [Tiff] How to Write a tif file with compression = COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Jean-Yves Le Ridant
2005.05.26 10:02 "Re[2]: [Tiff] How to Write a tif file wit h compression = COMPRESSION_JPEG & photom etric = PHOTOMETRIC_YCBCR ?", by Kelvin Zhong
2005.05.26 12:24 "Re[3]: [Tiff] How to Write a tif file with compression = COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Jean-Yves Le Ridant
2005.05.26 13:03 "Re: Re[3]: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Joris Van Damme
2005.05.26 14:10 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Jean-Yves Le Ridant
2005.05.26 16:23 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Joris Van Damme
2005.05.26 16:50 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Bob Friesenhahn
2005.05.26 17:00 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG&photometric = PHOTOMETRIC_YCBCR ?", by Joris Van Damme
2005.05.26 19:30 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Chris Cox
2005.05.26 19:34 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Bob Friesenhahn
2005.05.26 19:41 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Chris Cox
2005.05.26 19:38 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Chris Losinger
2005.05.26 19:43 "[Tiff] Re: Byte Order rules", by Chris Cox
2005.05.26 19:48 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Bob Friesenhahn
2005.05.28 18:01 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Joris Van Damme
2005.05.30 09:42 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Jean-Yves Le Ridant
2005.05.30 10:31 "Re: [Tiff] How to Write a tif file with compression=COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Marti Maria
2005.05.30 13:04 "Re: [Tiff] How to Write a tif file with compression=COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Jean-Yves Le Ridant
2005.05.30 14:39 "Re: [Tiff] How to Write a tif file with compression=COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Marti Maria
2005.05.31 18:36 "Re: [Tiff] How to Write a tif file with compression=COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Chris Cox
2005.05.31 18:35 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Chris Cox
2005.05.31 18:54 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Bob Friesenhahn
2005.05.31 19:00 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Chris Cox

2005.05.31 18:35 "Re: [Tiff] How to Write a tif file with compression =COMPRESSION_JPEG& photometric = PHOTOMETRIC_YCBCR ?", by Chris Cox

I thought about this further...

Apart from including ICC profiles, our best option to communicate grayscale in a scientifically unambigious way,

Have someone seen a ICC profile, a EXIF object, a BROUZOUF object, make something else than adding ambiguity? ( Don't say waste CPU cycles and RAID cylinders, I know )

Huh?

ICC profiles REMOVE ambiguity - they precisely define the interpretation of the values in the image. They certainly are not a waste of time or space.

EXIF helps reduce ambiguity about the image data (but since everything is marked as sRGB, Adobe RGB or untagged - it doesn't remove it).

Chris