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May 2005
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2005.05.30 13:04 "Re: Jpeg and YCbCr", by Jean-yves Le Ridant
> > 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 ) > > :-))) > > ICC profiles, many times. Of course if you embed the wrong profile, then it > is going to mess out your image, but used properly works quite well. I can understand "wrong" profile regarding things like colorspace description ( primaries, white point ....), less easily for "intents" ... And when a soft give me the choice between 3 CMS giving différents results for the same "rendering options" ( choosen from a dozen) I hardly deal with the concept of a "proper use". > Photometric=Lab and Samples per pixel=1 is legal as it is documented in the > TIFF Technote #2 (March 22, 2002), see page 13: > > SamplesPerPixel - ExtraSamples: 3 for L*a*b*, 1 implies L* only, for monochrome > data. Thanks -- Jean-Yves