1994.09.16 17:46 "Re: TransferFunction Question", by Sam Leffler
Does it make any sense to specify a TransferFunction when any of the non-extra samples have a SampleFormat that is not equal to 1 (unsigned integer data)? The TIFF 6.0 Specification is not clear on this.
Probably not. The TIFF 6.0 spec is decidedly unclear on many things (usually stuff that didn't matter to certain parties that wrote the spec). In any event, since you'll not likely find too many TIFF readers that handle non-integer samples you probably know whether or not the specific TIFF reader that you're writing an image for can or can not grok the combination of TransferFunction and SampleFormat != 1.