As said here, OpenCV uses IPP which uses GPU:
It turned out that OpenCV was using IPP and IPP itself can use GPU nowadays.
just in case someone else googles for "opencv gpu slower" and didnt know about the IPP GPU support ;)
Also, I found this:
Optimizing an Augmented Reality Pipeline using Intel® IPP Asynchronous
Using Intel® GPUs to Optimize the Performance and Power Consumption of Total Immersion's D'Fusion* Augmented Reality Pipeline
And there is no one keyword: OpenCL, OpenACC, CUDA, nVidia, ...
There is only one relative to GPU keyword: OpenGL
Does this mean that the Intel IPP supports only Intel GPU? Or Intel IPP support any GPU (nVidia GeForce, AMD Radeon) which supports OpenGL?
