2024年1月14日发(作者：)

ubuntu12.04安装OpenCV2.4。1

分类： opencv2012-06-26 14:411230人阅读评论(0)收藏举报

目录(?)[+]

The Installation Procedure

To install and configure OpenCV 2.4.1, complete the following steps. The commands

shown in each step can be copy and pasted directly into a Linux command line.

1. Remove any installed versions of ffmpeg and x264.

sudo apt-get remove ffmpeg x264 libx264-dev

2. Get all the dependencies for x264 and ffmpeg.

sudo apt-get update

sudo apt-get install build-essential checkinstall git cmake

libfaac-dev libjack-jackd2-dev libmp3lame-dev

libopencore-amrnb-dev libopencore-amrwb-dev libsdl1.2-dev

libtheora-dev libva-dev libvdpau-dev libvorbis-dev libx11-dev

libxfixes-dev libxvidcore-dev texi2html yasm zlib1g-dev

3. Download and install gstreamer.

sudo apt-get install libgstreamer0.10-0 libgstreamer0.10-dev

gstreamer0.10-tools gstreamer0.10-plugins-base

libgstreamer-plugins-base0.10-dev gstreamer0.10-plugins-good

gstreamer0.10-plugins-ugly gstreamer0.10-plugins-bad

gstreamer0.10-ffmpeg

4. Download and install gtk.

sudo apt-get install libgtk2.0-0 libgtk2.0-dev

5. Download and install libjpeg.

sudo apt-get install libjpeg8 libjpeg8-dev

6. Create a directory to hold source code.

cd ~

mkdir src

7. Download and install install x264.

a. Download a recent stable snapshot of x264 from

ftp:///pub/videolan/x264/snapshots/. The exact version

does not seem to matter. To write this guide, I used version

2, but I have used

previous versions too.

cd ~/src

wget

ftp:///pub/videolan/x264/snapshots/2

tar xvf 2

cd x264-snapshot-20120528-2245-stable

b. Configure and build the x264 libraries.

./configure --enable-static

make

sudo make install

IMPORTANT: If you are running a 64-bit version of Ubuntu, you must

configure x264 as shown in the following command:

./configure --enable-shared --enable-pic

The -shared and -pic options might also be required when you compile

for some other architectures, such as ARM. You know you need these

options if you get the following error when compiling OpenCV:

[ 25%] Building CXX object

modules/highgui/CMakeFiles/opencv_/src/.o

Linking CXX shared

library ../../lib/libopencv_

/usr/bin/ld: /usr/local/lib/libavcodec.a(avpacket.o):

relocation R_X86_64_32S against `av_destruct_packet' can

not be used when making a shared object; recompile with

-fPIC

/usr/local/lib/libavcodec.a: could not read symbols: Bad

value

8. Download and install install ffmpeg.

a. Download ffmpeg version 0.11.x from /.

cd ~/src

wget /releases/2

tar xvf 2

cd ffmpeg-0.11

b. Configure and build ffmpeg. //如果是ubuntu是安装在虚拟机上，需要加上--enable-shared

./configure --enable-gpl --enable-libfaac

--enable-libmp3lame --enable-libopencore-amrnb

--enable-libopencore-amrwb --enable-libtheora

--enable-libvorbis --enable-libx264 --enable-libxvid

--enable-nonfree --enable-postproc --enable-version3

--enable-x11grab

make

sudo make install

IMPORTANT: Just like with x264 in the previous step, you must

configure ffmpeg with the -shared option if you are running a 64-bit

version of Ubuntu or some other architectures, such as ARM. The -pic

option is not necessary for ffmpeg.

./configure --enable-gpl --enable-libfaac

--enable-libmp3lame --enable-libopencore-amrnb

--enable-libopencore-amrwb --enable-libtheora

--enable-libvorbis --enable-libx264 --enable-libxvid

--enable-nonfree --enable-postproc --enable-version3

--enable-x11grab --enable-shared

9. Download and install install a recent version of v4l (video for linux) from

/downloads/v4l-utils/. For this guide I used version 0.8.8.

cd ~/src

wget /downloads/v4l-utils/2

tar xvf 2

cd v4l-utils-0.8.8

make

sudo make install

10. Download and install install OpenCV 2.4.1.

a. Download OpenCV version 2.4.1 from

/projects/opencvlibrary/files/

cd ~/src

wget

/project/opencvlibrary/opencv-unix/2.4.1/2

tar xvf 2

b. Create a new build directory and run cmake:

cd OpenCV-2.4.1/

mkdir build

cd build

cmake -D CMAKE_BUILD_TYPE=RELEASE ..

c. Verify that the output of cmake includes the following text:

found gstreamer-base-0.10

GTK+ 2.x: YES

FFMPEG: YES

GStreamer: YES

V4L/V4L2: Using libv4l

d. Build and install OpenCV.

make

sudo make install

11. Configure Linux.

a. Tell linux where the shared libraries for OpenCV are located by entering

the following shell command:

export LD_LIBRARY_PATH=/usr/local/lib

Add the command to your .bashrc file so that you don’t have to enter

every time your start a new terminal.

Alternatively, you can configure the system wide library search path.

Using your favorite editor, add a single line containing the

text/usr/local/lib to the end of a file named

/etc/.d/. In the standard Ubuntu install,

the file does not exist; you need to create it. Using vi, for

example, enter the following commands:

sudo vi /etc/.d/

G

o

/usr/local/lib

< Esc>

:wq!

After editing the file, enter the following command:

sudo ldconfig /etc/

.

b. Using your favorite editor, add the following two lines to the end of

/etc/:

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

export PKG_CONFIG_PATH

8 运行例程测试

1 cd ~

4 cd openCV_samples/c

5 chmod +x build_

6 ./build_

7

8 ./facedetect

--cascade="/usr/local/share/OpenCV/haarcascades/haarcascade_frontalface_"

--scale=1.5

More Information

If you encounter problems installing OpenCV, see the companion guide, “A

Comprehensive OpenCV Installation Troubleshooting Guide.”

Utkarsh Sinha runs AiShack, a site that has easy-to-understand tutorials using

OpenCV to solve real-world problems:/topics/tutorials/

Sebastian Montabone has several articles on installing OpenCV and image

processing. His web site is/

FakeOutdoorsman’s posted an excellent dependency install guide, which is

located on the Ubuntu

forums:/?t=786095