LINUX 下的opencv安装

1.安装RH9时记得把GTK+安装上，否则，OPENCV里边所有程序是执行不了的。 （包括转贴）　

Linux

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There are no prebuilt binaries for Linux version (because of different C++-incompatible versions of GCC in different distributions), so you'd have to build it from sources. The following has been tested on Slackware 10.0 (GCC 3.3.*) That's what you need to build fully-functionaly libraries and demos:

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+GTK+ 2.x or higher.

+ libpng, libjpeg and libtiff with development files.

+ libavcodec from ffmpeg 0.4.8 + headers. Earlier version do not work with OpenCV because of different API. libavcodec is LGPL software, so to use it with non-GPL software (such as OpenCV) you need to build and use a _shared_ library libavcodec.so.*: get ffmpeg-0.4.8 from ffmpeg.sourceforge.net ./configure --enable-shared make make install you will have got: /usr/local/lib/libavcodec.so.* & /usr/local/include/ffmpeg/*.h Now build OpenCV:

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b) if your distribution does not support RPM, build and install it in Unix/Linux traditional way:

./configure

make

make install # as root

ldconfig # as root

在上面这段中，要确认安装系统时安装了ＧＴＫ，之后安装ffmpeg（可以在http://download.chinaunix.net/download/0003000/2990.shtml）中下载．

之后的部分参考： http://www.linuxol.cn/Linux-vip/2008-4-19/OPENCV-DeZai-LINUX-XiaDeAnZhuangShiYongZhuYiShiXiang-4ge04.htm

2.记得修改/etc/ld.so.conf

添加一行/usr/local/lib

# ldconfig (root用户)

然后将/usr/local/lib/pkg-config中的opencv.pc 拷贝到/usr/lib/pkg-config中,(如果不做这步,根本编译不起)

可以采用这个操作

# cp /usr/local/lib/pkg-config/opencv.pc /usr/lib/pkg-config

3. congfigure的时候，输入./configure --without-python --enable-static

4.还要注意把OPENCV下的头文件，就是包含cv.h和highgui.h这个2个文件的那个目录里边的所有文件（记得是/usr/local/include/opencv)，都拷贝到/usr/include下（别问我为什么，反正不拷贝，编译程序时提示找不到那2个头文件）

5.编译链接文件的方法：

以编辑cvtest.c文件为例子(因为highgui中采用了c++,所以一定要用g++编译才可以)

A. g++ `pkg-config --cflags opencv` -o cvtest cvtest.c `pkg-config --libs opencv`

B. 编译: g++ `pkg-config --cflags opencv` -c cvtest.c

链接: g++ `pkg-config --libs opencv` -o cvtest cvtest.o

注意：g++ 后边那个东西是 ` ，就是ESC下边那个键。