2003.09.10 02:21 "[Tiff] 12-bits tiff", by Gennady Khokhorin
Thread
2003.09.10 06:56 "[Tiff] 12-bits tiff", by Andrey Kiselev
On Tue, Sep 09, 2003 at 06:21:37PM -0800, Gennady Khokhorin wrote:
Does somebody have any idea what is packing schema for 12-bits image in terms of PACK(r,g,b), PACK4(r,g,b,a) RGBA format (tif_getimage.c)? I'm reading buffer from jpeg codec and want to convert it to rgba (tiff2rgba.c sample).
The first thing which comes to mind that they are packed 4 bits per channel. But you should be sure you are working in RGB colorspace, not in YCbCr. If latter you need to convert values after unpacking.
Andrey
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Andrey V. Kiselev
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