On 02/12/2011 02:21 PM, Kevin Wampler wrote:
> 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.

That's the other thing of course - there's nothing to say that Photoshop 
is using the same algorithm, or even a slightly similar algorithm. Maybe 
that's the important step - they found some more efficient mathematics?

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