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TIFF and LibTiff Mail List Archive

2004.09.02 12:09 "[Tiff] Extra Sample Value = 999", by Sonia S Kumar

Hi,

I have a Tiff Image with following specification. Can somebody tell me what does the extra sample value means.

TIFFTAG_EXTRASAMPLES
Tag 338
Value = 999

where Extra Samples = 1, PhotoMetric = 2

As according to the Tiff Specification, Extra Samples can have 3 possible values :-

0 - Unspecified
1 - Associated Alpha
2 - Unassociated Alpha

regards,
Sonia