CMake搜索OpenCV庫

我已經安裝了opencv的-3.2，我可以看到bin和lib文件CMake搜索OpenCV庫

$ ls /share/apps/computer/opencv-3.2.0/built/bin/opencv_ 
opencv_annotation  opencv_createsamples opencv_traincascade  opencv_version  opencv_visualisation 
$ ls /share/apps/computer/opencv-3.2.0/built/lib/ 
libopencv_calib3d.so   libopencv_imgcodecs.so.3.2.0 libopencv_stitching.so.3.2 
libopencv_calib3d.so.3.2  libopencv_imgproc.so   libopencv_stitching.so.3.2.0 
libopencv_calib3d.so.3.2.0  libopencv_imgproc.so.3.2  libopencv_superres.so 
libopencv_core.so    libopencv_imgproc.so.3.2.0  libopencv_superres.so.3.2 
libopencv_core.so.3.2   libopencv_ml.so    libopencv_superres.so.3.2.0 
libopencv_core.so.3.2.0  libopencv_ml.so.3.2   libopencv_videoio.so 
libopencv_features2d.so  libopencv_ml.so.3.2.0   libopencv_videoio.so.3.2 
libopencv_features2d.so.3.2 libopencv_objdetect.so   libopencv_videoio.so.3.2.0 
libopencv_features2d.so.3.2.0 libopencv_objdetect.so.3.2  libopencv_video.so 
libopencv_flann.so    libopencv_objdetect.so.3.2.0 libopencv_video.so.3.2 
libopencv_flann.so.3.2   libopencv_photo.so    libopencv_video.so.3.2.0 
libopencv_flann.so.3.2.0  libopencv_photo.so.3.2   libopencv_videostab.so 
libopencv_highgui.so   libopencv_photo.so.3.2.0  libopencv_videostab.so.3.2 
libopencv_highgui.so.3.2  libopencv_shape.so    libopencv_videostab.so.3.2.0 
libopencv_highgui.so.3.2.0  libopencv_shape.so.3.2   pkgconfig/ 
libopencv_imgcodecs.so   libopencv_shape.so.3.2.0 
libopencv_imgcodecs.so.3.2  libopencv_stitching.so

現在，根據tutorial，我寫了一個簡單的程序。問題是，cmake得到一些錯誤，似乎它無法找到該庫。

CMake Error at CMakeLists.txt:3 (find_package): 
    By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has 
    asked CMake to find a package configuration file provided by "OpenCV", but 
    CMake did not find one. 

    Could not find a package configuration file provided by "OpenCV" with any 
    of the following names: 

    OpenCVConfig.cmake 
    opencv-config.cmake 

    Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set 
    "OpenCV_DIR" to a directory containing one of the above files. If "OpenCV" 
    provides a separate development package or SDK, be sure it has been 
    installed.

我不知道如何設置CMAKE_PREFIX_PATH或OpenCV_DIR。我該如何解決這個問題？

的CMakeLists.txt的內容是

cmake_minimum_required(VERSION 2.8) 
project(DisplayImage) 
find_package(OpenCV REQUIRED) 
add_executable(DisplayImage DisplayImage.cpp) 
target_link_libraries(DisplayImage ${OpenCV_LIBS})

來源

2017-06-04 mahmood

如何讓你的機器上安裝的OpenCV？並附上您的'CMakeLists.txt' – ZdaR

的內容我遵照指示。 http://docs.opencv.org/trunk/d7/d9f/tutorial_linux_install.html – mahmood

這個[鏈接]嘗試（http://www.pyimagesearch.com/2015/06/22/install-opencv-3-0 -and-蟒蛇-2-7-上的Ubuntu /） – ZdaR

這取決於你是否有OpenCVConfig.cmake腳本，來與您的OpenCV的安裝（即，在安裝目錄/share/apps/computer/opencv-3.2.0/built/）。

如果您的OpenCV 的安裝缺乏OpenCVConfig.cmake腳本，需要運輸項目與腳本FindOpenCV.cmake（找到並從網上覆制的，幾乎任何人都適合），以及與此腳本中添加目錄到CMAKE_MODULE_PATH變量：

list(APPEND CMAKE_MODULE_PATH <directory-with-find-script>)

可能的方式來暗示CMake的有關安裝的OpenCV：

如果你有OpenCVConfig.cmake腳本，設置OpenCV_DIR變量的目錄包含在此腳本：
```
cmake -DOpenCV_DIR=/share/apps/computer/opencv-3.2.0/built/<...> 
```
設置CMAKE_PREFIX_PATH變量的OpenCV的安裝前綴：
```
cmake -DCMAKE_PREFIX_PATH=/share/apps/computer/opencv-3.2.0/built 
```
這工作都與OpenCVConfig.cmake與FindOpenCV.cmake腳本。另請參閱該問題：Hinting Find<name>.cmake Files with a custom directory。

來源

2017-06-04 17:11:59 Tsyvarev

CMake搜索OpenCV庫

回答

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