一、安装make,cmake
sudo apt-get install make sudo apt-get install cmake
二、下载deb包
去 这里 下载libopencv_2.4.10.deb.zip(我不太好下载,折腾了好久最后是用手机流量才下载下来,电脑一直下载到一大半就停止不动了)
那个deb的作者还发了 这个帖子 ,有问题可以去问
三、安装deb包
解压.deb.zip,复制到RPi上,到那个目录里,然后执行
sudo dpkg -i ./libopencv_2.4.10.deb
四、复制头文件
下载OpenCV2.4.10 Windows版,在win下安装,得到/build,/source目录。复制/build/include/*到/usr/local/include
(假设/build/include/已经复制到RPi上的./目录了)
sudo cp -r ./* /usr/local/include
说明一下deb和头文件的关系:deb里头是一些.so(动态链接库),在链接时用到;头文件在编译时用到。缺一不可。
五、安装ffmpeg
可以先试试看不做这个步骤,反正我在安装之前一直莫名其妙地报错,说
/tmp/ccDC21Dx.o: In function `cv::Mat::~Mat()': a.cpp:(.text._ZN2cv3MatD2Ev[_ZN2cv3MatD5Ev]+0x3c): undefined reference to `cv::fastFree(void*)' /tmp/ccDC21Dx.o: In function `cv::Mat::release()': a.cpp:(.text._ZN2cv3Mat7releaseEv[cv::Mat::release()]+0x58): undefined reference to `cv::Mat::deallocate()'
安装之后正常(不知道是不是这个原因)
sudo apt-get install ffmpeg
六、新建测试工程源码
假设我们在目录./下做这个工程
1.新建 a.cpp ,内容如下:(主要是看看Mat能否正常初始化和析构,可以的话基本上就没问题了)
#include "opencv2/opencv.hpp" using namespace cv; int main(){ Mat img; return 0; }
2.新建 CMakeLists.txt ,内容如下:(这个文件名不可更改,用于cmake)
PROJECT(main) CMAKE_MINIMUM_REQUIRED(VERSION 2.6) AUX_SOURCE_DIRECTORY(. DIR_SRCS) ADD_EXECUTABLE(main ${DIR_SRCS}) TARGET_LINK_LIBRARIES(main opencv_core) TARGET_LINK_LIBRARIES(main opencv_imgproc) TARGET_LINK_LIBRARIES(main opencv_video) TARGET_LINK_LIBRARIES(main opencv_highgui) TARGET_LINK_LIBRARIES(main opencv_photo) TARGET_LINK_LIBRARIES(main opencv_flann) TARGET_LINK_LIBRARIES(main opencv_superres) TARGET_LINK_LIBRARIES(main opencv_stitching) TARGET_LINK_LIBRARIES(main opencv_ml) TARGET_LINK_LIBRARIES(main opencv_video) TARGET_LINK_LIBRARIES(main opencv_features2d) TARGET_LINK_LIBRARIES(main opencv_calib3d) TARGET_LINK_LIBRARIES(main opencv_objdetect)
七、编译测试工程
1.编译
mkdir ./build
cd ./build cmake .. make
如果没有错误,就会产生如下输出
pi@turtle ~/swap/proj $ mkdir build pi@turtle ~/swap/proj $ cd ./build pi@turtle ~/swap/proj/build $ cmake .. -- The C compiler identification is GNU 4.6.3 -- The CXX compiler identification is GNU 4.6.3 -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Configuring done -- Generating done -- Build files have been written to: /home/pi/swap/proj/build pi@turtle ~/swap/proj/build $ make Scanning dependencies of target main [100%] Building CXX object CMakeFiles/main.dir/a.cpp.o Linking CXX executable main [100%] Built target main
2.运行
./main
应该如下:
pi@turtle ~/swap/proj/build $ ./main pi@turtle ~/swap/proj/build $
对,确实没有输出,但是 没有报错 就是好事了,接下来就可以使用了!
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