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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Fri, 3 Jun 2011 02:11:01 -0600
Subject: Re: Why is this so much faster?
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On Thu, Jun 2, 2011 at 7:28 PM, Keir Rice <keirrice@gmail.com> wrote:
> Ian, I was basing my code off Fredrik Lundh post on comparing images.
> http://effbot.org/zone/pil-comparing-images.htm

Ah, now I get what it's doing.  Thanks!