AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

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1996.11.07 08:00 "Tiff file informations", by Jean-Luc Villette
1996.11.07 15:26 "Re: Tiff file informations", by Tom Lane

1996.11.07 08:00 "Tiff file informations", by Jean-Luc Villette

But this type of ordering is in contradiction with the way we store the YCbCr datas with YCbCrSubSampling Values of [2,2].

We have video images YCbCr in the format 4:2:2 (corresponding to ChromaSubSampleHoriz = 2 and ChromaSubSampleVert = 2) and the data are stored this way (the same that we read them) Y1, Cb1, Y2,Cr1, Y3, Cb2, Y4,Cr2 etc... in fact two values of luma for one couple of chroma (Cb,Cr).

Could someone ask this question: is the specification documentation false especially on page 93 or is the way we are storing datas wrong? It's very important for us to know, because we want to import TIFF files to our system.


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