【已经解决】 Win10环境下采用CMake编译OpenCV项目，提示无法找到opencv

1. 安装过OpenCV 4.1 win pack版本，同时安装的Intel Sensor SDK第三方软件中有opencv 3.4版本。 都按照操作要求添加了环境变量路径。 2. 采用CMake编译一个文件出现一直提示错误，这个错误应该是很多人都遇到过的。 CMakeLists.txt文件内容如下： cmake_minimum_required(VERSION 3.10) project(CvTrack) set(CMAKE_BUILD_TYPE Debug) set(OpenCV_DIR "D:/opencv/build") find_package(OpenCV REQUIRED) add_executable(CvTracking "main.cpp") target_link_libraries(CvTrack ${OpenCV_LIBS}) ********************************************************************************************************************************************************** 产生的错误提示： Selecting Windows SDK version 10.0.17763.0 to target Windows 10.0.18362. OpenCV ARCH: x86 OpenCV RUNTIME: vc14 OpenCV STATIC: OFF CMake Warning at D:/opencv/build/OpenCVConfig.cmake:166 (message): Found OpenCV Windows Pack but it has no binaries compatible with your configuration. You should manually point CMake variable OpenCV_DIR to your build of OpenCV library. Call Stack (most recent call first): CMakeLists.txt:15 (find_package) CMake Error at CMakeLists.txt:15 (find_package): Found package configuration file: D:/opencv/build/OpenCVConfig.cmake but it set OpenCV_FOUND to FALSE so package "OpenCV" is considered to be NOT FOUND.  安装目录如下：   请问，这个问题如何解决呢？？ /==/==/==/==/==/==/==/==/==/==/==/==/==/==/==/==/==/== 解决方法： 主要原因：根据提示，OpenCVConfig.cmake文件有问题；实际在OpenCV 4.1 wind pack安装版本中，OpenCVConfig.cmake在其它路径下也有一个文件，修改路径即。 其次原因：设定的工程名为CvTrack，在add\_excuatable中的TargetName不对应。所以：重新修正了一下CMakeLists.txt: cmake_minimum_required(VERSION 3.10) project(CvTrack) set(OpenCV_DIR "D:/opencv/build/x64/vc15/lib") # 错误修正 find_package(OpenCV REQUIRED) include_directories(${OpenCV_INCLUDE_DIRS}) add_executable(CvTrack "main.cpp") # 错误修正 target_link_libraries(CvTrack ${OpenCV_LIBS})

opencv3.2与opencv 2.8 切换的问题

我的ubuntu系统原来安装了opencv２.8，现在由于实际需要，安装了opencv3.2。但是，opencv2.8还得继续保留。利用pkg-config --modversion opencv 查看opencv的版本，显示是３.2.０。原来（opencv2.8下），CMakeList文件是这样写的。 project(test) find_package(OpenCV REQUIRED) add_executable(test src/test.cpp) target_link_libraries(test ${OpenCV_LIBS}) cmake_minimum_required(VERSION 2.8) 我使用opencv3.2编译的时候，按照要求，我把路径给加上了。 project(test) find_package(OpenCV REQUIRED) set(OpenCV_DIR "/usr/local/opencv320/share/OpenCV") INCLUDE_DIRECTORIES(${OpenCV_INCLUDE_DIRS}) add_executable(test src/test.cpp) target_link_libraries(test ${OpenCV_LIBS}) cmake_minimum_required(VERSION 3.2) 但是显示错误：要求的opencv版本太高，当前运行版本为２.8。但是我用　pkg-config --modversion opencv　查看版本，显示的是３.2.0

opencv3.1.0交叉编译出错

我在给mini2440移植opencv3.1.0的时候，make编译opencv过程中出错了。log如下： CMakeFiles/opencv_perf_core.dir/perf/perf_math.cpp.obj: In function `cv::Mat::~Mat()': perf_math.cpp.text._ZN2cv3MatD1Ev[cv::Mat::~Mat()]+0x1c): undefined reference to `__sync_fetch_and_add_4' CMakeFiles/opencv_perf_core.dir/perf/perf_compare.cpp.obj: In function `Size_MatType_CmpType_compare:erfTestBody()': perf_compare.cpp.text._ZN28Size_MatType_CmpType_compare12PerfTestBodyEv+0x30c): undefined reference to `__sync_fetch_and_add_4' perf_compare.cpp.text._ZN28Size_MatType_CmpType_compare12PerfTestBodyEv+0x378): undefined reference to `__sync_fetch_and_add_4' perf_compare.cpp.text._ZN28Size_MatType_CmpType_compare12PerfTestBodyEv+0x3ec): undefined reference to `__sync_fetch_and_add_4' CMakeFiles/opencv_perf_core.dir/perf/perf_compare.cpp.obj: In function `Size_MatType_CmpType_compareScalar:erfTestBody()': perf_compare.cpp.text._ZN34Size_MatType_CmpType_compareScalar12PerfTestBodyEv+0x32c): undefined reference to `__sync_fetch_and_add_4' CMakeFiles/opencv_perf_core.dir/perf/perf_compare.cpp.obj:perf_compare.cpp.text._ZN34Size_MatType_CmpType_compareScalar12PerfTestBodyEv+0x3a0): more undefined references to `__sync_fetch_and_add_4' follow collect2: ld returned 1 exit status make[2]: *** [bin/opencv_perf_core] Error 1 make[1]: *** [modules/core/CMakeFiles/opencv_perf_core.dir/all] Error 2 make: *** [all] Error 2 我用的是Ubuntu14.04,32位虚拟机。 查网上说是CMAKE_C_FLAGS要设为-march=armv4t 可是我安装提示设置了CMAKE_C_FLAGS 和 CMAKE_CXX_FLAGS的值，错误还是没有消失。 我试过了opencv3.1。0和opencv3.2.0了，都会出现这个问题。因为项目需求要用到opencv3 所以只能自己编译最新版，，泪奔 有大神遇到过这个问题吗？

在ubuntu下配置opencv，cmake成功了,而make时候报错

1 [ 6%] Generating precomp.hpp.gch/opencv_core_Release.gch 2 In file included from /usr/include/c++/6/bits/stl_algo.h:59:0, 3 from /usr/include/c++/6/algorithm:62, 4 from /opt/opencv/opencv-3.1.0/modules/core/include/opencv2/core/base.hpp:53, 5 from /opt/opencv/opencv-3.1.0/modules/core/include/opencv2/core.hpp:54, 6 from /opt/opencv/opencv-3.1.0/modules/core/include/opencv2/core/utility.hpp:52, 7 from /opt/opencv/build/modules/core/precomp.hpp:49: 8 /usr/include/c++/6/cstdlib:75:25: fatal error: stdlib.h: 没有那个文件或目录 9 #include_next <stdlib.h> 10 ^ 11 compilation terminated. 12 modules/core/CMakeFiles/pch_Generate_opencv_core.dir/build.make:62: recipe for target 'modules/core/precomp.hpp.gch/opencv_core_Release.gch' failed 13 make[2]: *** [modules/core/precomp.hpp.gch/opencv_core_Release.gch] Error 1 14 CMakeFiles/Makefile2:1178: recipe for target 'modules/core/CMakeFiles/pch_Generate_opencv_core.dir/all' failed 15 make[1]: *** [modules/core/CMakeFiles/pch_Generate_opencv_core.dir/all] Error 2 16 Makefile:160: recipe for target 'all' failed 17 make: *** [all] Error 2 

ubantu16 安装opencv3.2 在 cmake时出项很多问题

FP16: Feature disabled -- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found suitable version "1.2.8", minimum required is "1.2.3") -- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.8") -- Found OpenEXR: /usr/lib/x86_64-linux-gnu/libIlmImf.so CMake Warning at cmake/OpenCVFindLibsGUI.cmake:18 (find_package): By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Core", but CMake did not find one. Could not find a package configuration file provided by "Qt5Core" with any of the following names: Qt5CoreConfig.cmake qt5core-config.cmake Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set "Qt5Core_DIR" to a directory containing one of the above files. If "Qt5Core" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): CMakeLists.txt:556 (include) CMake Warning at cmake/OpenCVFindLibsGUI.cmake:19 (find_package): By not providing "FindQt5Gui.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Gui", but CMake did not find one. Could not find a package configuration file provided by "Qt5Gui" with any of the following names: Qt5GuiConfig.cmake qt5gui-config.cmake Add the installation prefix of "Qt5Gui" to CMAKE_PREFIX_PATH or set "Qt5Gui_DIR" to a directory containing one of the above files. If "Qt5Gui" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): CMakeLists.txt:556 (include) CMake Warning at cmake/OpenCVFindLibsGUI.cmake:20 (find_package): By not providing "FindQt5Widgets.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Widgets", but CMake did not find one. Could not find a package configuration file provided by "Qt5Widgets" with any of the following names: Qt5WidgetsConfig.cmake qt5widgets-config.cmake Add the installation prefix of "Qt5Widgets" to CMAKE_PREFIX_PATH or set "Qt5Widgets_DIR" to a directory containing one of the above files. If "Qt5Widgets" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): CMakeLists.txt:556 (include) CMake Warning at cmake/OpenCVFindLibsGUI.cmake:21 (find_package): By not providing "FindQt5Test.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Test", but CMake did not find one. Could not find a package configuration file provided by "Qt5Test" with any of the following names: Qt5TestConfig.cmake qt5test-config.cmake Add the installation prefix of "Qt5Test" to CMAKE_PREFIX_PATH or set "Qt5Test_DIR" to a directory containing one of the above files. If "Qt5Test" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): CMakeLists.txt:556 (include) CMake Warning at cmake/OpenCVFindLibsGUI.cmake:22 (find_package): By not providing "FindQt5Concurrent.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Concurrent", but CMake did not find one. Could not find a package configuration file provided by "Qt5Concurrent" with any of the following names: Qt5ConcurrentConfig.cmake qt5concurrent-config.cmake Add the installation prefix of "Qt5Concurrent" to CMAKE_PREFIX_PATH or set "Qt5Concurrent_DIR" to a directory containing one of the above files. If "Qt5Concurrent" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): CMakeLists.txt:556 (include) -- Looking for Q_WS_X11 -- Looking for Q_WS_X11 - found -- Looking for Q_WS_WIN -- Looking for Q_WS_WIN - not found -- Looking for Q_WS_QWS -- Looking for Q_WS_QWS - not found -- Looking for Q_WS_MAC -- Looking for Q_WS_MAC - not found -- Found Qt4: /usr/bin/qmake (found version "4.8.7") -- Checking for module 'gstreamer-base-1.0' -- No package 'gstreamer-base-1.0' found -- Checking for module 'gstreamer-video-1.0' -- No package 'gstreamer-video-1.0' found -- Checking for module 'gstreamer-app-1.0' -- No package 'gstreamer-app-1.0' found -- Checking for module 'gstreamer-riff-1.0' -- No package 'gstreamer-riff-1.0' found -- Checking for module 'gstreamer-pbutils-1.0' -- No package 'gstreamer-pbutils-1.0' found -- Checking for module 'gstreamer-base-0.10' -- Found gstreamer-base-0.10, version 0.10.36 -- Checking for module 'gstreamer-video-0.10' -- Found gstreamer-video-0.10, version 0.10.36 -- Checking for module 'gstreamer-app-0.10' -- Found gstreamer-app-0.10, version 0.10.36 -- Checking for module 'gstreamer-riff-0.10' -- Found gstreamer-riff-0.10, version 0.10.36 -- Checking for module 'gstreamer-pbutils-0.10' -- Found gstreamer-pbutils-0.10, version 0.10.36 -- Checking for module 'libxine' -- No package 'libxine' found -- Looking for linux/videodev.h -- Looking for linux/videodev.h - not found -- Looking for linux/videodev2.h -- Looking for linux/videodev2.h - found -- Looking for sys/videoio.h -- Looking for sys/videoio.h - not found -- Checking for module 'libavresample' -- No package 'libavresample' found -- Checking for module 'libgphoto2' -- No package 'libgphoto2' found -- Found TBB: /usr/lib/x86_64-linux-gnu/libtbb.so CMake Error at cmake/OpenCVFindIPP.cmake:243 (include): include could not find load file: ...................... CMake Warning at CMakeLists.txt:1356 (message): The source directory is the same as binary directory. "make clean" may damage the source tree -- Configuring incomplete, errors occurred! See also "/home/zyz/文档/opencv-3.2.0/CMakeFiles/CMakeOutput.log". See also "/home/zyz/文档/opencv-3.2.0/CMakeFiles/CMakeError.log".

opencv配置成功后，进行测试时出错

CMake Warning at /home/obvious/opencv/cmake/OpenCVConfig.cmake:166 (message): Found OpenCV Windows Pack but it has no binaries compatible with your configuration. You should manually point CMake variable OpenCV_DIR to your build of OpenCV library. Call Stack (most recent call first): CMakeLists.txt:10 (find_package) CMake Error at CMakeLists.txt:10 (find_package): Found package configuration file: /home/obvious/opencv/cmake/OpenCVConfig.cmake but it set OpenCV_FOUND to FALSE so package "OpenCV" is considered to be NOT FOUND. 

求教，cmake找不到库,帮帮忙，感激

1.cmake老是提示找不到boost库 2.我增加了link_directories(F:/Proj/20150519/superviseddescent-master/superviseddescent-master/boost_1_54_0/lib64-msvc-10.0)还是没有用 3.cmakelist.text 主 ``` project(superviseddescent) cmake_minimum_required(VERSION 2.8.7) set(superviseddescent_VERSION_MAJOR 0) set(superviseddescent_VERSION_MINOR 3) set(superviseddescent_VERSION_PATCH 0) set (BOOST_ROOT,"F:/Proj/20150519/superviseddescent-master/superviseddescent-master/boost_1_54_0") set(Boost_LIBRARIES,"F:/Proj/20150519/superviseddescent-master/superviseddescent-master/boost_1_54_0/lib64-msvc-10.0") message(STATUS "BOOST_ROOT: ${BOOST_ROOT}") # g++ needs a compiler flag to enable C++11 support include(CheckCXXCompilerFlag) check_cxx_compiler_flag(-std=c++11 HAS_CXX11_FLAG) if (HAS_CXX11_FLAG) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") endif() # All the options for building the library. Can be changed on the command-line or in initial_cache.cmake. message(STATUS "Options:") option(BUILD_TESTS "Builds the unit tests." ON) message(STATUS "BUILD_TESTS: ${BUILD_TESTS}") option(BUILD_EXAMPLES "Build the example applications." ON) message(STATUS "BUILD_EXAMPLES: ${BUILD_EXAMPLES}") option(BUILD_DOCUMENTATION "Build the library documentation." ON) message(STATUS "BUILD_DOCUMENTATION: ${BUILD_DOCUMENTATION}") # Build a CPack driven installer package: include(InstallRequiredSystemLibraries) # This module will include any runtime libraries that are needed by the project for the current platform set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE") set(CPACK_PACKAGE_VERSION_MAJOR "${superviseddescent_VERSION_MAJOR}") set(CPACK_PACKAGE_VERSION_MINOR "${superviseddescent_VERSION_MINOR}") set(CPACK_PACKAGE_VERSION_PATCH "${superviseddescent_VERSION_PATCH}") include(CPack) #set(Boost_USE_STATIC_LIBS OFF) # Find dependencies: find_package(OpenCV 2.4.3 REQUIRED core) message(STATUS "OpenCV include dir found at ${OpenCV_INCLUDE_DIRS}") message(STATUS "xxxxxxBoost found at ${Boost_INCLUDE_DIRS}") message(STATUS "OpenCV lib dir found at ${OpenCV_LIB_DIR}") link_directories(F:/Proj/20150519/superviseddescent-master/superviseddescent-master/boost_1_54_0/lib64-msvc-10.0) link_directories(F:/Proj/20150519/superviseddescent-master/superviseddescent-master/boost_1_54_02/bin/vc10/lib) find_package(Boost 1.48.0 COMPONENTS system serialization REQUIRED) if(Boost_FOUND) #message(STATUS "aaaaaaaaaaaaaaaaaaaaaaaaaaaaa ${Boost_INCLUDE_DIRS}/bin/vc10/lib") message(STATUS "Boost found at ${Boost_INCLUDE_DIRS}") else(Boost_FOUND) message(FATAL_ERROR "Boost not found") endif() message(STATUS "xxxxxxxxxxxxxxxxxxxxxxxx ${Boost_LIBRARIES}") set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake) find_package(Eigen3 REQUIRED) message(STATUS "Eigen3 found: ${EIGEN3_FOUND}") message(STATUS "Eigen3 include dir found at ${EIGEN3_INCLUDE_DIR}") message(STATUS "Eigen3 version: ${EIGEN3_VERSION}") # Source and header files set(HEADERS include/superviseddescent/superviseddescent.hpp include/superviseddescent/regressors.hpp include/superviseddescent/matserialisation.hpp include/superviseddescent/utils/ThreadPool.h ) # Add header includes: include_directories("include") include_directories(${Boost_INCLUDE_DIRS}) include_directories(${OpenCV_INCLUDE_DIRS}) include_directories(${EIGEN3_INCLUDE_DIR}) # The install target: install(DIRECTORY ${CMAKE_SOURCE_DIR}/include/ DESTINATION include) if(BUILD_TESTS) message(STATUS "Configuring gtest-1.7.0...") set(gtest_force_shared_crt ON CACHE BOOL "Use shared (DLL) run-time lib (CRT) even when Google Test is built as static lib.") # THIS IS NEWEST add_subdirectory(3rdparty/gtest-1.7.0) message(STATUS "Finished configuring gtest.") enable_testing() # Enables CTest add_custom_target(check-dbg COMMAND ${CMAKE_CTEST_COMMAND} -V -C Debug) # to get detailed output on VS add_custom_target(check-rel COMMAND ${CMAKE_CTEST_COMMAND} -V -C Release) add_subdirectory(test) endif() if(BUILD_EXAMPLES) add_subdirectory(examples) endif() if(BUILD_DOCUMENTATION) add_subdirectory(doc) endif() ``` cmakelist.text 子文件夹 ``` # Unit tests # ========== # Note: All the variables in here are inherited from the parent CMakeLists find_package(OpenCV 2.4.3 REQUIRED core) message(STATUS "OpenCV include dir found at ${OpenCV_INCLUDE_DIRS}") message(STATUS "OpenCV lib dir found at ${OpenCV_LIB_DIR}") message(STATUS "OpenCV lib dir aaaaaat ${OpenCV_LIB_DIR}") include_directories(${gtest_SOURCE_DIR}/include) set(TEST_LINREG1D test_LinearRegressor1D) add_executable(${TEST_LINREG1D} test_LinearRegressor1D.cpp) #link_directories(${BOOST_ROOT}/bin/vc10/lib) target_link_libraries(${TEST_LINREG1D} ${OpenCV_LIBS} ${Boost_LIBRARIES} gtest_main gtest) add_test(${TEST_LINREG1D} ${TEST_LINREG1D}) # Syntax: testname exename set(TEST_LINREGND test_LinearRegressorND) add_executable(${TEST_LINREGND} test_LinearRegressorND.cpp) target_link_libraries(${TEST_LINREGND} ${OpenCV_LIBS} ${Boost_LIBRARIES} gtest_main gtest) add_test(${TEST_LINREGND} ${TEST_LINREGND}) set(TEST_SDO test_SupervisedDescentOptimiser) add_executable(${TEST_SDO} test_SupervisedDescentOptimiser.cpp) target_link_libraries(${TEST_SDO} ${OpenCV_LIBS} ${Boost_LIBRARIES} gtest_main gtest) add_test(${TEST_SDO} ${TEST_SDO}) ``` 4.目录如下 5.boost目录 6.boost库

ubuntu 安装配置c++的opencv 报错

我在ubuntu 上打算安装和配置c++的Opencv， 下载了opencv3.1.0版本的代码，然后也手动的下载了ippicv_linux_20151201.tgz。创建build文件夹后Cmake命令已经可以编译过去了。 但是在执行make命令的时候，经常会报错： ``` [ 15%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/opencl_kernels_core.cpp.o [ 15%] Linking CXX shared library ../../lib/libopencv_core.so /usr/bin/ld: CMakeFiles/opencv_core.dir/src/va_intel.cpp.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC CMakeFiles/opencv_core.dir/src/va_intel.cpp.o: 无法添加符号: 错误的值 collect2: error: ld returned 1 exit status modules/core/CMakeFiles/opencv_core.dir/build.make:1382: recipe for target 'lib/libopencv_core.so.3.1.0' failed make[2]: *** [lib/libopencv_core.so.3.1.0] Error 1 CMakeFiles/Makefile2:1420: recipe for target 'modules/core/CMakeFiles/opencv_core.dir/all' failed make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2 Makefile:160: recipe for target 'all' failed make: *** [all] Error 2 ``` 有时候在33%进度的时候报这个错误，有时候就在15%时候报。我整整试了一整天，查遍了各种解决方法都无济于事。请大侠们帮忙解决下吧。跪谢。 是否有直接加载已经编译好的库的方式，可以快速实现配置，因为我急需要用Opencv实现代码。感谢各位大侠了。

windows环境下codeblocks17.12 用cmake配置opencv3.4.7出现如下错误

试了好多次了，参考了不少博主的文章编译，还是有错 ``` F:/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: i386 architecture of input file `CMakeFiles\opencv_core.dir/objects.a(vs_version.rc.obj)' is incompatible with i386:x86-64 output collect2.exe: error: ld returned 1 exit status modules\core\CMakeFiles\opencv_core.dir\build.make:1843: recipe for target 'bin/libopencv_core340.dll' failed mingw32-make[2]: *** [bin/libopencv_core340.dll] Error 1 CMakeFiles\Makefile2:1686: recipe for target 'modules/core/CMakeFiles/opencv_core.dir/all' failed mingw32-make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2 Makefile:161: recipe for target 'all' failed mingw32-make: *** [all] Error 2 ```

CMakeLists编译出错，如何使用?

cmake_minimum_required(VERSION 2.8 FATAL_ERROR) project(kinect_capture) set(FREENECT_DIR "c:/code/libfreenect") set(FREENECT_BUILD_DIR "c:/code/libfreenect_build") set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${FREENECT_DIR}/cmake_modules/") #Boost set(BOOST_ROOT "c:/code/boost_1_47_0") set(BOOST_LIBRARYDIR "C:/code/boost_1_47_0/stage/lib") set(Boost_USE_STATIC_LIBS ON) set(Boost_USE_MULTITHREADED ON) set(Boost_USE_STATIC_RUNTIME OFF) find_package(Boost COMPONENTS date_time) include_directories(${Boost_INCLUDE_DIRS}) link_directories(${BOOST_LIBRARYDIR}) #VTK #find_package(VTK) #if(VTK_FOUND) # INCLUDE(${VTK_USE_FILE}) #endif() f #PCL #find_package(PCL 1.1 COMPONENTS common visualization) #include_directories(${PCL_INCLUDE_DIRS}) #link_directories(${PCL_LIBRARY_DIRS}) #add_definitions(${PCL_DEFINITIONS}) #OpenCV set(OpenCV_DIR "C:/code/OpenCV2.2/build") find_package(OpenCV COMPONENTS filesystem) include_directories(${OpenCV_INCLUDE_DIRS}) link_directories(${OpenCV_LIB_DIR}) #OpenGL find_package(OpenGL REQUIRED) find_package(GLUT REQUIRED) include_directories(${OPENGL_INCLUDE_DIRS} ${GLUT_INCLUDE_DIRS} ${USB_INCLUDE_DIRS}) #include_directories("C:/code/glew-1.7.0/include") #include_directories("C:/code/glew-1.7.0/lib") #Glui include_directories("C:/code/glui-2.35/src/include") link_directories("c:/code/glui-2.35/src/msvc/lib") #PTHREAD set(THREADS_PTHREADS_INCLUDE_DIR "c:/code/pthreads-2-8-0/include") set(THREADS_PTHREADS_WIN32_LIBRARY "c:/code/pthreads-2-8-0/lib/pthreadVC2.lib") set(THREADS_USE_PTHREADS_WIN32 true) find_package(Threads REQUIRED) include_directories(${THREADS_PTHREADS_INCLUDE_DIR}) #USB set(LIBUSB_1_INCLUDE_DIR "C:/code/libusb-1.2.5.0/include") set(LIBUSB_1_LIBRARY "C:/code/libusb-1.2.5.0/lib/msvc/libusb.lib") find_package(libusb-1.0 REQUIRED) include_directories(${LIBUSB_1_INCLUDE_DIRS}) include_directories("${FREENECT_DIR}/platform/windows") include_directories("${FREENECT_DIR}/platform/windows/libusb10emu") #Freenect include_directories("${FREENECT_DIR}/include") #set(FREENECT_LIBRARY_DIR optimized "${FREENECT_BUILD_DIR}/lib/Release/" debug "${FREENECT_BUILD_DIR}/lib/Debug/") set(FREENECT_LIBRARY_DIR "${FREENECT_BUILD_DIR}/lib/") link_directories(${FREENECT_LIBRARY_DIR}) set(FREENECT_LIBRARIES "freenect.lib") #Files file(GLOB_RECURSE INCS "*.h") set(SRCS kinect_capture.cpp kinect_capture_app.cpp kinect_calibration.cpp freenect_module.cpp ) #Build add_executable (kinect_capture ${SRCS} ${INCS}) target_link_libraries (kinect_capture ${FREENECT_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${OPENGL_LIBRARIES} ${GLUT_LIBRARY} ${LIBUSB_1_LIBRARIES} ${OpenCV_LIBS} ${Boost_LIBRARIES}) #${PCL_LIBRARIES} ${VTK_LIBRARIES} 这是cmakelist的全部内容,#Boost，#VTK，#PCL，#OpenCV，#OpenGL，#Glui，#PTHREAD，#Freenect这些在电脑里都要有吗？？

Android studio JNI 使用 CMakeLists 如何让import的so库 生成到输出目录？

引入第三方so 通过 ``` add_library(Opencv SHARED IMPORTED) set_target_properties(AlgInterface PROPERTIES IMPORTED_LOCATION ${opencvpath}) ``` 链接so ``` target_link_libraries(myso Opencv) ``` 设置输出目录 ``` set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}) ``` 输出目录中只有myso 没有 opencv ，如何让opencv同时生成到 输出目录呢 Android.mk中 可以直接构建库 ``` LOCAL_MODULE := Opencv LOCAL_SRC_FILES := $(LOCAL_PATH)/libopencv.so ``` 但是CMakeLists中 add_library 源文件不能是so CMakeLists中有什么类似的方式么 或者其他好的办法

通过MakeFile文件了解项目目录结构，编写CMake的CMakelist.txt文件方法。

主项目： CC = gcc CFLAGS += -O3 BIN_DIR = ./bin SRC_DIR = ./src DOC_DIR = ./docs INC_DIR = ./include LIB_DIR = ./lib BIN = siftfeat match dspfeat all: $(BIN) libopensift.a docs docs: doxygen Doxyfile libopensift.a: make -C $(SRC_DIR) $@ $(BIN): make -C $(SRC_DIR) $@ clean: make -C $(SRC_DIR) $@; \ make -C $(INC_DIR) $@; \ distclean: clean rm -f $(LIB_DIR)/* rm -f $(BIN_DIR)/* docsclean: rm -rf $(DOC_DIR)/html/ .PHONY: docs clean docsclean libopensift.a scr文件： CC = gcc CFLAGS += BIN_DIR = ../bin INC_DIR = ../include LIB_DIR = ../lib INCL = -I$(INC_DIR) `pkg-config --cflags opencv gtk+-2.0` LIBS = -L$(LIB_DIR) -lopensift -lm `pkg-config --libs opencv gtk+-2.0` OBJ = imgfeatures.o utils.o sift.o kdtree.o minpq.o xform.o BIN = siftfeat match dspfeat all: $(BIN) libopensift.a libopensift.a: $(OBJ) ar rc $(LIB_DIR)/$@ $(OBJ) ranlib $(LIB_DIR)/$@ siftfeat: libopensift.a siftfeat.c $(CC) $(CFLAGS) $(INCL) siftfeat.c -o $(BIN_DIR)/$@ $(LIBS) match: libopensift.a match.c $(CC) $(CFLAGS) $(INCL) match.c -o $(BIN_DIR)/$@ $(LIBS) dspfeat: libopensift.a dspfeat.c $(CC) $(CFLAGS) $(INCL) dspfeat.c -o $(BIN_DIR)/$@ $(LIBS) imgfeatures.o: imgfeatures.c $(INC_DIR)/imgfeatures.h $(CC) $(CFLAGS) $(INCL) -c imgfeatures.c -o $@ utils.o: utils.c $(INC_DIR)/utils.h $(CC) $(CFLAGS) $(INCL) -c utils.c -o $@ sift.o: sift.c $(INC_DIR)/sift.h $(CC) $(CFLAGS) $(INCL) -c sift.c -o $@ kdtree.o: kdtree.c $(INC_DIR)/kdtree.h $(CC) $(CFLAGS) $(INCL) -c kdtree.c -o $@ minpq.o: minpq.c $(INC_DIR)/minpq.h $(CC) $(CFLAGS) $(INCL) -c minpq.c -o $@ xform.o: xform.c $(INC_DIR)/xform.h $(CC) $(CFLAGS) $(INCL) -c xform.c -o $@ clean: rm -f *~ *.o core .PHONY: clean include文件： clean: rm -f *~ .PHONY: clean

WINDOWS下用Cmake弄CodeBlocks + OPenCV 3.3配置时出错

  这个文件 Building RC object modules/core/CMakeFiles/opencv_core.dir/vs_version.rc. obj 有没有大神救救我...

为什么Opencv3.4.0使用make编译时出现错误？

环境：Debian(Raspiberry Pi Buster) cmake version: 3.0.2 gcc version: 8.2.0 python version: 3.7.2 make version: 4.2.1 本来计划用opencv基于python进行图像辨别 在使用cmake配置完成后使用make命令编译： ``` sudo make ``` 编译到大约90%时，出现如下错误： ``` #这是之前很多条控制台信息中的warning warning: cast between incompatible function types from ‘PyObject* (*)(PyObject*, PyObject*, PyObject*)’ {aka ‘_object* (*)(_object*, _object*, _object*)’} to ‘PyCFunction’ {aka ‘_object* (*)(_object*, _object*)’} [-Wcast-function-type] ``` ``` #make错误，退出 make[2]: *** [modules/python3/CMakeFiles/opencv_python3.dir/build.make:56: modules/python3/CMakeFiles/opencv_python3.dir/__/src2/cv2.cpp.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:21149: modules/python3/CMakeFiles/opencv_python3.dir/all] Error 2 make: *** [Makefile:138: all] Error 2 ``` 如图（图1中使用了make -i选项忽略错误，继续编译剩余部分，但open_cv python3没有成功编译）：  （图2显示了make的错误）  ``` #忽略错误后出现的c++error c++: error: Cmakefiles/opencv_python3.dir/__/src2/cv2.cpp.o No such file or dictionary ``` 在网上看到的编译错误的例子都和这个有所区别，没有能够很好地解决问题。有的说这是gcc编译器的问题 希望各位大佬们能够帮忙分析一下错误的原因，因为我的项目急需配置好opencv，也没有其它更好的替代，谢谢~

opencv配置在qt5.6上的问题

通过cmake 3.7.2 Configure OpenCV3.2的source文件遇到以下问题： Make Error at D:/pack/opencv/cmake-3.7.2-64位/cmake-3.7.2-win64-x64/share/cmake-3.7/Modules/CMakeTestCXXCompiler.cmake:44 (message): The C++ compiler "D:/qtcreator/Tools/mingw492_32/bin/g++.exe" is not able to compile a simple test program. It fails with the following output: Change Dir: D:/pack/opencv/release/CMakeFiles/CMakeTmp Run Build Command:"D:/qtcreator/Tools/mingw492_32/bin/mingw32-make.exe" "cmTC_97ee7/fast" D:/qtcreator/Tools/mingw492_32/bin/mingw32-make.exe -f CMakeFiles\cmTC_97ee7.dir\build.make CMakeFiles/cmTC_97ee7.dir/build mingw32-make.exe[1]: Entering directory 'D:/pack/opencv/release/CMakeFiles/CMakeTmp' CMakeFiles\cmTC_97ee7.dir\build.make:64: recipe for target 'CMakeFiles/cmTC_97ee7.dir/testCXXCompiler.cxx.obj' failed process_begin: CreateProcess(NULL, D:\pack\opencv\cmake-3.7.2-64位\cmake-3.7.2-win64-x64\bin\cmake.exe -E cmake_echo_color --switch= --progress-dir=D:\pack\opencv\release\CMakeFiles\CMakeTmp\CMakeFiles --progress-num=1 "Building CXX object CMakeFiles/cmTC_97ee7.dir/testCXXCompiler.cxx.obj", ...) failed. make (e=2): 系统找不到指定的文件。 mingw32-make.exe[1]: *** [CMakeFiles/cmTC_97ee7.dir/testCXXCompiler.cxx.obj] Error 2 mingw32-make.exe[1]: Leaving directory 'D:/pack/opencv/release/CMakeFiles/CMakeTmp' makefile:125: recipe for target 'cmTC_97ee7/fast' failed mingw32-make.exe: *** [cmTC_97ee7/fast] Error 2 CMake will not be able to correctly generate this project. Call Stack (most recent call first): CMakeLists.txt:98 (project)

谁能帮忙看一下OpenCV 3.4.1源码的类型转换编译错误？

环境： 1. Ubuntu 12.04 LTS 2. cmake 3.5.1 3. OpenCV 3.4.1源码 4. Arm Cortex-A7 NXP i.MX6Q 5. 已经sudo为root 执行过程 cd opencv-3.4.1 mkdir build cd build cmakd -D CMAKE_BUILD_TYPE=Relase -D CMAKE_INSTALL_PREFIX=/usr/local .. make make install 出错提示： [ 0%] Built target gen-pkgconfig [ 9%] Built target libwebp [ 14%] Built target IlmImf [ 20%] Built target libprotobuf [ 23%] Built target carotene_objs [ 24%] Built target tegra_hal [ 24%] Built target opencv_ts_pch_dephelp [ 24%] Built target pch_Generate_opencv_ts [ 25%] Built target opencv_core_pch_dephelp [ 25%] Built target pch_Generate_opencv_core [ 31%] Built target opencv_core [ 31%] Built target opencv_imgproc_pch_dephelp [ 31%] Built target pch_Generate_opencv_imgproc [ 31%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/smooth.cpp.o /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp: In function ‘void cv::vlineSmooth1N(const FT* const*, const FT*, int, ET*, int) [with ET = unsigned char, FT = {anonymous}::ufixedpoint16]’: /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2676:31: error: conversion from ‘{anonymous}::ufixedpoint32’ to ‘cv::uint8_t {aka unsigned char}’ is ambiguous /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2676:31: note: candidates are: /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:223:22: note: {anonymous}::ufixedpoint32::operator float() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:222:22: note: {anonymous}::ufixedpoint32::operator double() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:221:22: note: {anonymous}::ufixedpoint32::operator ET() const [with ET = unsigned char] /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp: In function ‘void cv::vlineSmooth1N1(const FT* const*, const FT*, int, ET*, int) [with ET = unsigned char, FT = {anonymous}::ufixedpoint16]’: /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2693:24: error: conversion from ‘const {anonymous}::ufixedpoint16’ to ‘cv::uint8_t {aka unsigned char}’ is ambiguous /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2693:24: note: candidates are: /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:289:22: note: {anonymous}::ufixedpoint16::operator float() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:288:22: note: {anonymous}::ufixedpoint16::operator double() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:287:22: note: {anonymous}::ufixedpoint16::operator ET() const [with ET = unsigned char] /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp: In function ‘void cv::vlineSmooth3N(const FT* const*, const FT*, int, ET*, int) [with ET = unsigned char, FT = {anonymous}::ufixedpoint16]’: /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2740:71: error: conversion from ‘{anonymous}::ufixedpoint32’ to ‘cv::uint8_t {aka unsigned char}’ is ambiguous /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2740:71: note: candidates are: /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:223:22: note: {anonymous}::ufixedpoint32::operator float() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:222:22: note: {anonymous}::ufixedpoint32::operator double() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:221:22: note: {anonymous}::ufixedpoint32::operator ET() const [with ET = unsigned char] /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp: In function ‘void cv::vlineSmooth5N(const FT* const*, const FT*, int, ET*, int) [with ET = unsigned char, FT = {anonymous}::ufixedpoint16]’: /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2816:109: error: conversion from ‘{anonymous}::ufixedpoint32’ to ‘cv::uint8_t {aka unsigned char}’ is ambiguous /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2816:109: note: candidates are: /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:223:22: note: {anonymous}::ufixedpoint32::operator float() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:222:22: note: {anonymous}::ufixedpoint32::operator double() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:221:22: note: {anonymous}::ufixedpoint32::operator ET() const [with ET = unsigned char] /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp: In function ‘void cv::vlineSmooth(const FT* const*, const FT*, int, ET*, int) [with ET = unsigned char, FT = {anonymous}::ufixedpoint16]’: /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2919:18: error: conversion from ‘{anonymous}::ufixedpoint32’ to ‘cv::uint8_t {aka unsigned char}’ is ambiguous /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2914:23: note: candidates are: /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:223:22: note: {anonymous}::ufixedpoint32::operator float() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:222:22: note: {anonymous}::ufixedpoint32::operator double() const /home/linaro/opencv-3.4.1/modules/imgproc/src/fixedpoint.inl.hpp:221:22: note: {anonymous}::ufixedpoint32::operator ET() const [with ET = unsigned char] make[2]: *** [modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/smooth.cpp.o] Error 1 make[1]: *** [modules/imgproc/CMakeFiles/opencv_imgproc.dir/all] Error 2 make: *** [all] Error 2 说明： 关键之处是 /home/linaro/opencv-3.4.1/modules/imgproc/src/smooth.cpp:2919:18: error: conversion from ‘{anonymous}::ufixedpoint32’ to ‘cv::uint8_t {aka unsigned char}’ is ambiguous 类型转换错误。 请教各位大侠，这个错误出在哪里，如何解决呢？ 谢谢！

跪求cmake交叉编译出错原因！！！

Linking CXX shared library ../../lib/libopencv_core.so /opt/EmbedSky/4.4.6/lib/gcc/arm-embedsky-linux-gnueabi/4.4.6/../../../../arm-embedsky-linux-gnueabi/bin/ld: ../../3rdparty/lib/libzlib.a(inflate.c.obj): relocation R_ARM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC ../../3rdparty/lib/libzlib.a: could not read symbols: Bad value collect2: ld returned 1 exit status make[2]: *** [lib/libopencv_core.so] 错误 1 make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] 错误 2 make: *** [all] 错误 2 请问这是什么错误啊？ opencv路径及版本：/usr/local/ Opencv2.4.1 cmake路径及版本：/usr/local/ cmake-2.8.12.2-Linux-i386 用户：root

linux安装opencv，执行cmake .报错

CMakeError.log内容： cc1plus: 警告：命令行选项“-Wmissing-prototypes”对 C/ObjC 是有效的，但对 C++ 无效 cc1plus: 警告：命令行选项“-Wstrict-prototypes”对 C/ObjC 是有效的，但对 C++ 无效 cc1plus: 警告：命令行选项“-Wno-missing-declarations”对 C/ObjC 是有效的，但对 C++ 无效 cc1plus: 错误：无法识别的命令行选项“-Wno-misleading-indentation” make[1]: *** [CMakeFiles/cmTC_16c2d.dir/src.cxx.o] 错误 1 make[1]: Leaving directory `/home/d5000/fujian/opencv-3.2.0/CMakeFiles/CMakeTmp' make: *** [cmTC_16c2d/fast] 错误 2

OpenCV4Android求大神解决

Build command failed. Error while executing process D:\AS\sdk\cmake\3.6.4111459\bin\cmake.exe with arguments {--build E:\lichao\study\android\code\OpenCV4AndroidFace\app\.externalNativeBuild\cmake\debug\arm64-v8a --target opencv341} [1/2] Building CXX object CMakeFiles/opencv341.dir/src/main/cpp/DetectionBasedTracker_jni.cpp.o FAILED: D:\AS\sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android --gcc-toolchain=D:/AS/sdk/ndk-bundle/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64 --sysroot=D:/AS/sdk/ndk-bundle/sysroot -Dopencv341_EXPORTS -I../../../../src/main/cpp/include -isystem D:/AS/sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/include -isystem D:/AS/sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/arm64-v8a/include -isystem D:/AS/sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/include/backward -isystem D:/AS/sdk/ndk-bundle/sysroot/usr/include/aarch64-linux-android -D__ANDROID_API__=21 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -frtti -fexceptions -std=gnu++11 -fexceptions -frtti -O2 -DNDEBUG -fPIC -MD -MT CMakeFiles/opencv341.dir/src/main/cpp/DetectionBasedTracker_jni.cpp.o -MF CMakeFiles\opencv341.dir\src\main\cpp\DetectionBasedTracker_jni.cpp.o.d -o CMakeFiles/opencv341.dir/src/main/cpp/DetectionBasedTracker_jni.cpp.o -c E:\lichao\study\android\code\OpenCV4AndroidFace\app\src\main\cpp\DetectionBasedTracker_jni.cpp E:\lichao\study\android\code\OpenCV4AndroidFace\app\src\main\cpp\DetectionBasedTracker_jni.cpp:1:10: error: 'DetectionBasedTracker_jni.h' file not found with <angled> include; use "quotes" instead #include <DetectionBasedTracker_jni.h> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "DetectionBasedTracker_jni.h" 1 error generated. ninja: build stopped: subcommand failed.

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