在Ubuntu中安装并测试OpenCV

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参照www.Micro_Studios.com的视频，在Ubuntu中成功安装了opencv，并且测试成功。现把具体的安装及测试过程整理出来，适合刚刚在Linux中使用opencv的同学参考参考。

1. Install OpenCV in Ubuntu:

(1) Update the list of packagerepositories:

sudo apt-get updatesudo apt-get upgrade

(2) Remove previously installedFFMPEG and x264 libraries:

sudo apt-get remove ffmpeg x264-dev

(3) Installthe necessary packages for compiling the OpenCV sources:

sudo apt-get install ocl-icd-libopencl1 build-essential checkinstall cmake pkg-config yasm libjpeg-dev libjasper-dev libavcodec-dev libavformat-dev libswscale-dev libdc1394-22-dev libxine-dev libgstreamer0.10-dev  libgstreamer-plugins-base0.10-dev libv4l-dev python-dev python-numpy libtbb-dev libqt4-dev libgtk2.0-dev libfaac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libtheora-dev libvorbis-dev libxvidcore-dev x264 v4l-utils

(4) Make a directory to downloadand build OpenCV:

mkdir opencvcd opencv

(5) Download the OpenCV sources forLinux, then unzip it:

wget -O opencv-2.4.10.zip http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.10/opencv-2.4.10.zip/downloadunzip opencv-2.4.10.zipcd opencv-2.4.10

(6) Create a directory to compileOpenCV sources:

mkdir buildcd build

(7) Building OpenCV sources withCMake and install:

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON -D WITH_QT=ON -D WITH_OPENGL=ON ..

(8) Make and install:

makesudo make installsudo sh -c 'echo"/usr/local/lib">/etc/ld.so.conf.d/opencv.conf'sudo ldconfig

(9) Restart the system for everythingto take effect:

sudo shutdown -r now

2. Test OpenCV in Ubuntu:

(1) Create a directory DisplayImagefor test project:

mkdir DisplayImagecd DisplayImage

(2) Create DisplayImage.cpp and edit it:

gedit DisplayImage.cpp

Then edit the DisplayImage.cpp:

#include <stdio.h>#include <opencv2/opencv.hpp>using namespace cv; int main(int argc, char** argv){         if(argc!= 2)         {                   printf("usage:DisplayImage.out <Image_Path>\n");                   return -1;         }          Mat image;         image= imread(argv[1], 1); <span style="white-space:pre"></span>if(!image.data)<span style="white-space:pre"></span>{                   printf("Noimage data\n");                   return -1;         }          namedWindow("DisplayImage",CV_WINDOW_AUTOSIZE);         imshow("DisplayImage",image);          waitKey(0);         return 0;}

(3) Create a CMake file:

gedit CMakeLists.txt

Then edit the CMakeLists.txt:

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

(4) Generate the executable file:

cmake .make

(5) Execute it:

./DisplayImage lena.jpg

lena.jpg is the test image

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