Ubuntu14下安装最新版本的CMake 和opencv C++版本
1.安装CMake
1.1. 卸载已经安装的旧版的CMake
apt-get autoremove cmake
1.2. 文件下载解压：
tar zxvf cmake-3.9.1-Linux-x86_64.tar.gz
1.3. 创建软链接
注: 文件路径是可以指定的, 一般选择在/opt 或 /usr 路径下, 这里选择/opt
mv cmake-3.9.1-Linux-x86_64 /opt/cmake-3.9.1 ln -sf /opt/cmake-3.9.1/bin/* /usr/bin/
1.4然后执行命令检查一下：
>>>cmake --version cmake version 3.9.1 CMake suite maintained and supported by Kitware (kitware.com/cmake). >>> >>>cmake-gui
OK。现在cmake最新版本安装成功。
2.安装opencv
2.1更新
$ sudo apt-get update
$ sudo apt-get upgrade
2.2安装依赖
$ sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
$ sudo apt-get install python3.5-dev python3-numpy libtbb2 libtbb-dev
$ sudo apt-get install libjpeg-dev libpng-dev libtiff5-dev libjasper-dev libdc1394-22-dev libeigen3-dev libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev sphinx-common libtbb-dev yasm libfaac-dev libopencore-amrnb-dev libopencore-amrwb-dev libopenexr-dev libgstreamer-plugins-base1.0-dev libavutil-dev libavfilter-dev libavresample-dev
2.3下载opencv(或者自己先下载下载包，然后再解压，比较快)
$ sudo -s
$ cd /opt
/opt$ git clone https://github.com/Itseez/opencv.git
/opt$ git clone https://github.com/Itseez/opencv_contrib.git
2.4编译和安装opencv(如果是刚刚解压的，直接进入opencv-master目录下，创建build，记得要删除CMakeCahe.txt这个文件)
/opt$ cd opencv
/opt/opencv$ mkdir release
/opt/opencv$ cd release
/opt/opencv/release$ cmake -D BUILD_TIFF=ON -D WITH_CUDA=OFF -D ENABLE_AVX=OFF -D WITH_OPENGL=OFF -D WITH_OPENCL=OFF -D WITH_IPP=OFF -D WITH_TBB=ON -D BUILD_TBB=ON -D WITH_EIGEN=OFF -D WITH_V4L=OFF -D WITH_VTK=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=/opt/opencv_contrib/modules /opt/opencv/
/opt/opencv/release$ make -j4
/opt/opencv/release$ make install
/opt/opencv/release$ ldconfig
/opt/opencv/release$ exit
/opt/opencv/release$ cd ~
2.5检查是否安装
$ pkg-config --modversion opencv
（如果不行，出现
Package opencv was not found in the pkg-config search path.
Perhaps you should add the directory containing `opencv.pc'
to the PKG_CONFIG_PATH environment variable
No package 'opencv' found ）
那就
apt-file search opencv.pc
sudo apt-get install libopencv-dev
pkg-config --cflags opencv
pkg-config --libs opencv
之后$ pkg-config --modversion opencv就可以看到版本了
致此安装成功。
验证
$ mkdir cpp_test
$ cd cpp_test
$ touch main.cpp
#include
#include
int main( int argc, char** argv ) {
cv::Mat image;
image = cv::imread("sample.jpeg" , CV_LOAD_IMAGE_COLOR);
if(! image.data ) {
std::cout << "Could not open or find the image" << std::endl ;
return -1;
}
cv::namedWindow( "Display window", cv::WINDOW_AUTOSIZE );
cv::imshow( "Display window", image );
cv::waitKey(0);
return 0;
}
编译
g++ main.cpp -o output `pkg-config --cflags --libs opencv`
./output