Comment # 18 on bug 92309 from Alex Deucher

(In reply to acutiator from comment #17)
> This is what I'm asking you, actually. I don't know if it's possible. I'm
> asking if it is. From what I understand based on the comments by Michel and
> Kamil it sounds like it should be possible. So I wanted to clarify on
> whether or not it is. The comment about a (0,0,0,0) pixel being a clear
> indicator that something is wrong is what triggered my question. If it can
> be clearly detected that it's a premultiplied alpha, even when the program
> doesn't indicate this, I would think that should be implemented. Now the
> question is if that can be easily detected without human intervention. But
> based on your question to me it doesn't sound like it is. Is that correct?

Correct.  I don't think it's possible.  We just get the raw image.  How do you
determine the indent of a specific pixel based on the pixel value?  Did the
provider intend it to be clear or did they indent it to be some specific color?