opencv - 在没有 GPU 的情况下编译 OpenCV？

Question

我刚从 OpenCV/build 运行 cmake -D CMAKE_BUILD_TYPE=RELEASE ..，得到我的输出:

--   OpenCV modules:
--     To be built:                 core imgproc flann highgui features2d calib3d ml video
                                    objdetect contrib nonfree gpu legacy photo python
                                    stitching ts videostab
--     Disabled:                    -
--     Disabled by dependency:      -
--     Unavailable:                 androidcamera java world

问题是，使用gpu 编译失败，可能是因为我的机器没有？ (这是一个 EC2 实例)。

make 失败并出现奇怪的错误:

Scanning dependencies of target opencv_test_gpu
[ 72%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/test_gpumat.cpp.o
[ 72%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/utility.cpp.o
[ 73%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/test_filters.cpp.o
[ 73%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/test_copy_make_border.cpp.o
[ 73%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/main.cpp.o
[ 73%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/test_threshold.cpp.o
[ 73%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/test_video.cpp.o
[ 73%] Building CXX object modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/test_core.cpp.o
c++: internal compiler error: Killed (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.6/README.Bugs> for instructions.
make[2]: *** [modules/gpu/CMakeFiles/opencv_test_gpu.dir/test/test_core.cpp.o] Error 4
make[1]: *** [modules/gpu/CMakeFiles/opencv_test_gpu.dir/all] Error 2
make: *** [all] Error 2

我试过使用标志 -DOPENCV_MODULES_DISABLED_USER="gpu" 但它会产生奇怪的输出，其中 gpu 被列为 to be built < em>和 已禁用。

--   OpenCV modules:
--     To be built:                 core imgproc flann highgui features2d calib3d ml video objdetect contrib nonfree gpu legacy photo python stitching ts videostab
--     Disabled:                    gpu
--     Disabled by dependency:      -
--     Unavailable:                 androidcamera java world

如何在没有 gpu 的情况下进行编译？

Answer 1

要禁止构建特定模块，请使用

-D BUILD_opencv_{modulename}=OFF

在这种情况下，使用

-D BUILD_opencv_gpu=OFF