On 3/20/11, Bill Skaggs wrote:
> I think it would be pretty difficult to figure out the algorithm by looking
> at the Gimp source code.  The algorithm that Gimp uses is based on
> papers by Todor Georgiev, and you can find a description of the algorithm
> in a paper he wrote called "Photoshop Healing Brush: a Tool for
> Seamless Cloning" -- you can access a PDF version at
> http://citeseerx.ist.psu.edu/viewdoc/download?doi=
> Note that Gimp only uses the Laplacian method that he describes, not
> the more sophisticated fourth-order version.

GIMP's implementation is prone to errors which is especially visible
when you heal near a visible border. I'm not entirely sure it's a good
idea to learn from it.

Alexandre Prokoudine
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