Ubuntu12.04 install OpenCV2.4.6.1

Install OpenCV2.4.6.1 in Ubuntu12.04

OpenCV2.4.6.1 Installation Process in Ubuntu 12.04:

Related reading:

Summary of installing OpenCV 2.4.5 in Ubuntu 12.04Http://www.linuxidc.com/Linux/2013-06/86704.htm

Install OpenCv2.1 nine-step http://www.linuxidc.com/Linux/2010-09/28678.htm in Ubuntu 10.04

1. Install the compilation environment and related libraries

Sudo apt-get install cmake build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libswscale-dev libjpeg62-dev libtiff4-dev libjasper-dev

2. Download The OpenCV source code and compile it.

Tar-xvf

Go to the extract directory,

Cmake. # generate the compilation configuration file

Make # compile. Compile in different linux systems. You may need to install more libraries for compiling dependencies. Follow the prompts to install whatever is missing.

Make install # install it. It is installed under/usr/local by default.

3. Update the dynamic link library and configuration file

Sudo gedit/etc/ld. so. conf. d/opencv. conf # Add the path of the opencv lib Library:/usr/local/lib, save

Sudo ldconfig # configure

Update the configuration file: sudo gedit/etc/bash. bashrc

Add at the end:

PKG_CONFIG_PATH = $ PKG_CONFIG_PATH:/usr/local/lib/pkgconfig

Export PKG_CONFIG_PATH

Iv. test Sample

Go to the sample/c directory:

./Facedetect -- cascade = "/usr/local/share/OpenCV/haarcascades/haarcascade_frontalface_alt.xml" -- scale =. 5./lena.jpg

Output the face detection result. OK.

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