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April 2005
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2005.05.02 13:44 "Re: Color TIFF/JPEG compression questions", by Ed Grissom
When an image shows up with blasted out pink and green, I always suspect a confusion over RGB vs. YCbCr. This image has tags for both : > [...] > Photometric Interpretation: RGB color > YCbCr Subsampling: 2, 2 > [...] My guess is that it should be "Photometric Interpretation: YCbCr" And things would work a lot better. TiffTechNote 2 requires that if the underlying JPEG compression uses YCbCr, then the TIFF layer must tell the truth and say it is a YCbCr image and not lie (for compatibility) and say it is RGB. -- ed grissom ed.grissom@intergraph.com