OpenCV:1.Ubuntu下安装

OpenCV即 Open Source Computer Vision Library.主要是提供图像处理和视频处理的基础算法库，还涉及一些机器学习的算法。比如你想实现视频的降噪、运动物体的跟踪、目标（比如人脸）的识别这些都是CV的领域.
安装的方法可以参见github上的git安装脚本.
如果不想取github上看,直接复制保存下面的代码成opencv2_4_9.sh文件.当然,通过下面的脚本,安装的版本就是2_4_9,只适用于Ubuntu系的Linux.其他版本或者Linux的安装脚本在上面的github上都有.

arch=$(uname -m)if [ "$arch" == "i686" -o "$arch" == "i386" -o "$arch" == "i486" -o "$arch" == "i586" ]; thenflag=1elseflag=0fiecho "Installing OpenCV 2.4.9"mkdir OpenCVcd OpenCVecho "Removing any pre-installed ffmpeg and x264"sudo apt-get -y remove ffmpeg x264 libx264-devecho "Installing Dependenices"sudo apt-get -y install libopencv-devsudo apt-get -y install build-essential checkinstall cmake pkg-config yasmsudo apt-get -y install libtiff4-dev libjpeg-dev libjasper-devsudo apt-get -y install libavcodec-dev libavformat-dev libswscale-dev libdc1394-22-dev libxine-dev libgstreamer0.10-dev libgstreamer-plugins-base0.10-dev libv4l-devsudo apt-get -y install python-dev python-numpysudo apt-get -y install libtbb-devsudo apt-get -y install libqt4-dev libgtk2.0-devsudo apt-get -y install libfaac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libtheora-dev libvorbis-dev libxvidcore-devsudo apt-get -y install x264 v4l-utils ffmpeg# sudo apt-get -y install libgtk2.0-dev # duplicateecho "Downloading OpenCV 2.4.9"wget -O OpenCV-2.4.9.zip http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.9/opencv-2.4.9.zip/downloadecho "Installing OpenCV 2.4.9"unzip OpenCV-2.4.9.zipcd opencv-2.4.9mkdir buildcd buildcmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D WITH_V4L=ON -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON -D WITH_QT=ON -D WITH_OPENGL=ON ..make -j4sudo make installsudo sh -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf'sudo ldconfigcd ../../..rm -rf OpenCVecho "OpenCV 2.4.9 ready to be used"

然后,通过下面两种方式执行即可.

chmod +x opencv.sh./opencv.sh

或者

sudo sh opencv.sh

会在脚本所在的目录新建一个OpenCV的目录,然后将OpenCV的安装相关文件下载到该目录下.脚本会执行一段时间,耐心等待执行完成,我的时间大约10分钟左右.因为要下载和编译一些代码.


看到上面,就说明安装完成了.安装完成后,上面的OpenCV目录会被删除.
通过,下面的命令可以查看安装的OpenCV的版本.

pkg-config --modversion opencv

测试安装

c语言版本test.c,打开一张图片.

#include<opencv2/highgui/highgui.hpp>int main(){    IplImage* img = cvLoadImage("/home/mungo/图片/墙纸.jpg",CV_LOAD_IMAGE_COLOR);    cvNamedWindow("opencvtest",CV_WINDOW_AUTOSIZE);    cvShowImage("opencvtest",img);    cvWaitKey(0);    cvReleaseImage(&img);    return 0;}

编译.

gcc -ggdb `pkg-config --cflags opencv` -o `basename test.c .c` test.c `pkg-config --libs opencv`

执行.

./test

再放一个python版本的.test.py

#!/usr/bin/python# -*- coding: utf-8 -*-  from cv2.cv import *img=LoadImage("//home/mungo/图片/墙纸.jpg")NamedWindow("opencv")ShowImage("opencv",img)WaitKey(0)

这样,基本环境就安装完成了.