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I am trying to work some image-process tasks with opencv on GPU with CUDA. I am using ubuntu. I setup my two products Opencv and Cuda without a problem, I am sure about that. However, when I attempt to run sampleCOde in eclipse, I have get an error:
OpenCV Error: No GPU support (The library is compiled without CUDA support) in mallocPitch, file /home/muad/Source/OpenCV-2.4.2/modules/core/src/gpumat.cpp, line 749
I remade my opencv, but I still get that.
As stated in the documentation, you have to build OpenCV using CMake and set the flag WITH_CUDA=ON. Then you will get the full-featured OpenCV GPU module. Otherwise the module is still built, but you recieve an exception with CV_GpuNotSupported.
For further information, read here: http://docs.opencv.org/modules/gpu/doc/introduction.html