GPU calculations in Processing

I have some tasks, that may be optimized using my gpu: calculating average brightness of pixels in some region.
Is there convenient way to use my geforce 150m for custom calculations?

Hi,

When reading your post, I first thought about GLSL shaders but I don’t know if it is possible to compute things and get back data from them…

Also you can check this link (Oracle article about accessing the GPU with Java) :

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