On 12/2/2011 2:41 AM, Invisible wrote:
>
> Caveat #2: The Photoshop thing is probably using the GPU to accelerate
> the **** out of this stuff. It wouldn't surprise me if taking 2D DFTs is
> vastly faster on a GPU than on a CPU.

I believe that the initial implementation of their algorithm ran on a 
single CPU core and took six minutes for a 1-megapixel image.  The 
current version is probably better though.

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