Opencv 错误:没有 GPU 支持(库在没有 CUDA 支持的情况下编译)
我正在尝试使用 CUDA 在 GPU 上使用 opencv 处理一些图像处理任务.我正在使用 ubuntu.我毫无问题地设置了我的两个产品 Opencv 和 Cuda，我对此很确定.但是，当我尝试在 Eclipse 中运行 sampleCOde 时，出现错误:
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 错误:在 mallocPitch，文件/home/muad/Source/OpenCV-2.4.2/modules/core/src/gpumat.cpp，第 749 行中不支持 GPU(编译库时不支持 CUDA)
我重新制作了我的 opencv，但我仍然明白.
I remade my opencv, but I still get that.
推荐答案
如文档中所述，您必须使用 CMake 构建 OpenCV 并设置标志 WITH_CUDA=ON.然后您将获得功能齐全的 OpenCV GPU 模块.否则，该模块仍会构建，但您会收到 CV_GpuNotSupported 异常.
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.
有关更多信息，请阅读此处:http://docs.opencv.org/modules/gpu/doc/introduction.html
For further information, read here: http://docs.opencv.org/modules/gpu/doc/introduction.html
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