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April 2009
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2009.04.27 20:49 "Re: Question regarding unassociated alpha", by Edward Lam
BTW, are you sure you want un-premultiplied images? pre-multiplied images are often handy. Edward Lam wrote: > Amir Ebrahimi wrote: >> >> On Apr 27, 2009, at 1:26 PM, Edward Lam wrote: >> >>> I think it's semantically supposed to always return pre-multiplied >>> alpha images. >> >> Okay, so maybe a conditional define or read option is due? > > Definitely, NOT a conditional define. Some way of specifying whether > pre-multiplied images should be returned would be nice although I don't > know offhand how you would do this without breaking ABI compatibility. > You probably shouldn't expect to see it in libtiff unless you're willing > to contribute suitable patches. :) > > -Edward >