LibTiff Mailing List

Is there a way of creating a "standard" CMY TIFF file ?

For a CMYK file, setting
TIFFTAG_PHOTOMETRIC to PHOTOMETRIC_SEPARATED and
TIFFTAG_SAMPLESPERPIXEL to 4 seems to work OK, but trying

TIFFTAG_PHOTOMETRIC to PHOTOMETRIC_SEPARATED and
TIFFTAG_SAMPLESPERPIXEL to 3 creates a file that (for instance),
photoshop doesn't recognize.

Given TIFF has a PHOTOMETRIC_RGB, _YCBCR, _CIELAB tags,
why doesn't TIFF have _CMY, _CMYK etc. tags ?

Graeme Gill.


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		TIFF and LibTiff Mailing List Archive
	LibTiff Mailing List TIFF and LibTiff Mailing List Archive September 2002 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 2002.09.19 07:33 "Correct way of creating CMY TIFF file ?", by Graeme Gill 2002.09.19 14:35 "Re: Correct way of creating CMY TIFF file ?", by Dwight Kelly 2002.09.19 15:00 "Re: Correct way of creating CMY TIFF file ?", by Jim Schueckler 2002.09.19 15:25 "Re: Correct way of creating CMY TIFF file ?", by Dwight Kelly 2002.09.30 21:46 "Re: Correct way of creating CMY TIFF file ?", by Chris Cox 2002.10.01 01:09 "Re: Correct way of creating CMY TIFF file ?", by Graeme Gill 2002.09.19 07:33 "Correct way of creating CMY TIFF file ?", by Graeme Gill Is there a way of creating a "standard" CMY TIFF file ? For a CMYK file, setting TIFFTAG_PHOTOMETRIC to PHOTOMETRIC_SEPARATED and TIFFTAG_SAMPLESPERPIXEL to 4 seems to work OK, but trying TIFFTAG_PHOTOMETRIC to PHOTOMETRIC_SEPARATED and TIFFTAG_SAMPLESPERPIXEL to 3 creates a file that (for instance), photoshop doesn't recognize. Given TIFF has a PHOTOMETRIC_RGB, _YCBCR, _CIELAB tags, why doesn't TIFF have _CMY, _CMYK etc. tags ? Graeme Gill.

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