Auto-crop in PIL?

[Erik Max Francis]

Tyler Eaves wrote:

> I dunno, to me a crop is by definition rectangular, and that's the way
> it's worked in every image editor I've ever used.

I think I misunderstood your intention, you had the right algorithm.  I
thought you were suggesting that, for example, to find the left bounds
of the cropping rectangle you pick an arbitrary y coordinate and then
start increment x from 0 until you hit on a non-white pixel.  That
wouldn't have worked, since you have to check all y coordinates in
strips in case the shape of the figure you wish to crop is irregular.

But on rereading your response, that probably wasn't what you were
suggesting, so never mind.

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