Instalacion OpenCV Ubuntu

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Manuel Ignacio Lpez Quintero

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Install OpenCV on Ubuntu Linux

Note:This tutorial has been tested on Ubuntu 12.04 LTS with OpenCV 2.4.3.

Install OpenCV on Ubuntu Linux is a bit long but very easy. Simply, follow these steps:

1. UPDATE AND UPGRADE UBUNTU

Open your terminal and execute:

sudo apt-get update

sudo apt-get upgrade

2. INSTALL THE DEPENDENCIES

Now execute:

sudo apt-get install build-essential libgtk2.0-dev libjpeg-dev

libtiff4-dev libjasper-dev libopenexr-dev cmake python-dev python-numpy

python-tk libtbb-dev libeigen2-dev yasm libfaac-dev libopencore-

amrnb-dev libopencore-amrwb-dev libtheora-dev libvorbis-dev

libxvidcore-dev libx264-dev libqt4-dev libqt4-opengl-dev sphinx-common

texlive-latex-extra libv4l-dev libdc1394-22-dev libavcodec-dev

nstall OpenCV on Ubuntu Linux - Manuel Ignacio... http://miloq.blogspot.com/2012/12/install-open

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libavformat-dev libswscale-dev

3. DOWNLOAD AND DECOMPRESS OPENCV

Enter the OpenCV official website and download the latest version for Ubuntu Linux. Then

decompress the downloaded file.

4. COMPILE OPENCV

Now, in your terminal, make sure you are within the OpenCV directory and run the following

commands:

mkdir build

cd build

cmake -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

sudo make install

5. CONFIGURE OPENCV

In your terminal, execute:

sudo gedit /etc/ld.so.conf.d/opencv.conf

Add the following line and save it:

/usr/local/lib

Now, in your terminal, execute:

sudo ldconfig

Again, execute:

sudo gedit /etc/bash.bashrc


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Add the following two lines at the end of the file and save it:

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

export PKG_CONFIG_PATH

Finally, reboot your computer.

6. TRY AN EXAMPLE

To test an example, from your terminal enters in the OpenCV folder. Once you're inside it enters

in samples/c.

Now, execute:

chmod +x build_all.sh

./build_all.sh

./facedetect lena.jpg

43 comments:


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Replies

Reply

Manuel Ignacio Lpez Quintero December 20, 2012 at 6:50 PM

Do you like this article? Share it with this link:

http://miloq.blogspot.com/2012/12/install-opencv-ubuntu-linux.html

Thanks for reading!

Reply

Pedro Bello Maldonado November 19, 2013 at 8:57 PM

It worked like a charm! Thank you very much.

Anonymous January 29, 2014 at 3:25 AM

it worked. thanks!

Anonymous March 22, 2014 at 2:28 AM

This works perfectly, no problems at all. Much thanks! Ubuntu 13.10.

Anonymous March 27, 2013 at 6:41 PM

Hi,

Thanks for the tutorial..It was just what i needed to get Opencv installed.

Great Job!!!

Cheers

Reply

Yeneneh Mulatu March 29, 2013 at 11:18 PM

it took me a while, but got it running at last, you blog has help me a lot, Thank you

Reply

harryDUDE June 2, 2013 at 2:48 PM


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Reply

Nice article. Precise & Lucid !

Great Work.

Thanks.

Reply

Cisne Negro June 12, 2013 at 7:05 PMSimple and clean.

Thank you

Reply

Yuan Gao June 18, 2013 at 10:24 AM

Really helpful.

Thanks.

Reply

Franco Barenghi August 29, 2013 at 1:30 PM

Great!

this is the best tutorial I ever seen about OpenCV.

Thanks

Reply

sriram IITian September 11, 2013 at 8:33 PM

at last getting error ... like

https://www.dropbox.com/s/1yv0x60xz776qu7

/Screenshot%20from%202013-09-12%2000%3A59%3A11.png

Reply

Manuel Ignacio Lpez Quintero September 12, 2013 at 12:52 PM

It is because you don't apply correctly the step 5: Configure OpenCV.

Anonymous September 22, 2013 at 6:14 AM

Very good one...Thanks :-)

Reply


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Replies

Muhammad Atif Sheikh September 23, 2013 at 5:34 AM

Hello, I am having problem with hough transform . can u help? it is giving some error

Reply

Anonymous September 23, 2013 at 1:46 PM

Hello, very nice manual

However, in the example part, after ./build_all.sh I get this output

g++: error: tbb: No such file or directory

g++: error: rt: No such file or directory

g++: error: pthread: No such file or directory

g++: error: m: No such file or directory

g++: error: dl: No such file or directory

Can you please inform me about this error?

Reply

Jiatian Pi October 18, 2013 at 2:33 AM

Hi,Have you solved that error ?,I meet the same problem, can you tell me how to

do with it?

srinivas rao jojigiri November 12, 2013 at 2:28 PM

Hi I've solved this problem by doing this

First locate opencv.pc file, its usually in /usr/lib/../pkg-config/opencv.pc

goto last but one line and it should be like this

tbb rt pthread m dl

Need to change this like below

-ltbb -lrt -lpthread -lm -ldl

Now try compiling it should work fine

got this solution from some question in stackoverflow

Manuel Ignacio Lpez Quintero November 19, 2013 at 4:26 PM

Thanks for the help, Srinivas.


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Reply

Replies

Reply

Anonymous October 11, 2013 at 10:56 PM

I am getting the error of which Anonymous is getting up there ^ ?? Thanks in advance.

Reply

Umar Chughtai October 19, 2013 at 12:23 AM

Hi

You guys should download opencv again, and make sure you compile with in the

opencv directory i.e step 4

Manuel Ignacio Lpez Quintero October 25, 2013 at 5:55 PM

Thanks for the help, Umar.

Kushal Saharan October 19, 2013 at 4:48 AM

Thanks!! Big Help!!

Reply


thank you!!! literally spent months trying to get it to work

Reply

Hagai Korenblum October 23, 2013 at 8:19 AM

hi all ,

my name is hagai,

I have run this steps ./facedetect lena.jpgi got this massage

Illegal instruction (core dumped)

can anyone help?


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Reply

Gabriel October 26, 2013 at 9:19 PM

Thanks for this! saved me some time!

Reply

VKS October 28, 2013 at 4:30 PM

Thanks man... one of the best and easy way to install...i have some doubts related to the

subject. Is there any blog of yours related to the opencv and opencv related programs.If it

is there can you tell?

Reply


do we need any prerequisites before starting with the first step?

coz wen i tried the step 2 it showed no such entry

please help me

Reply

Anonymous November 3, 2013 at 9:28 PM

Thank you so much!!!!!

Reply

Anonymous November 4, 2013 at 4:22 PM

After I try to execute step 2 (installing the dependencies), I get the following error:

Package 'libtbb-dev' has no installation candidate

Unable to locate package libfaac-dev

Are there some other dependencies that I need to install beforehand? Is the order of the

dependencies incorrect?

Reply

Anonymous November 12, 2013 at 8:34 AM

thank you! works perfectly! saved me a lot of time!

Reply


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Reply

Jian Quan November 28, 2013 at 4:16 PM

Hi, I am having a problem when it comes to step 4 when i execute the command 'make'

it gives me this error

Linking CXX executable ../../bin/opencv_perf_gpu

/usr/bin/ld: ../../lib/libopencv_highgui.so.2.4.3: don't know how to handle section ` ' [0x2372]

../../lib/libopencv_highgui.so.2.4.3: could not read symbols: File in wrong format

collect2: ld returned 1 exit status

make[2]: *** [bin/opencv_perf_gpu] Error 1

make[1]: *** [modules/gpu/CMakeFiles/opencv_perf_gpu.dor/all] Error 2

make:: *** [all] Error 2

i hope that you can help me resolve this problem as I need to rush with the completion of

my project and opencv is a very important aspect of it, thanks so much for ur reply

Reply

Anonymous December 1, 2013 at 9:01 AM

To install OpenCV using the terminal on Ubuntu:

$ su -

# apt-get update

# apt-get install build-essential

# apt-get install libavformat-dev

# apt-get install x264 v4l-utils ffmpeg

# apt-get install libcv2.3 libcvaux2.3 libhighgui2.3 python-opencv opencv-doc libcv-dev

libcvaux-dev libhighgui-dev

http://namhuy.net/1205/how-to-install-opencv-on-ubuntu.html

Reply

Jian Quan December 1, 2013 at 11:26 PM

can this be the same for raspbian on raspberry pi too? thanks


thank you ....

Reply


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Reply


while running samples/c file I m getting fatal error of file not found or directory not found

can some one solve this problem

Reply

Anonymous January 20, 2014 at 1:45 PM

Thanks a bunch! I've been trying to install OpenCV on Win8 for the past four months but

with no success. Now I'm on Ubuntu 13.10 and this really worked for me!

Reply

Sathish KumarJanuary 24, 2014 at 7:18 AM

Reply

Sathish KumarJanuary 24, 2014 at 7:19 AM

Thanks, I am also installed Opencv 2.4.8 in Ubuntu 13.10 Its worked......

Anonymous February 15, 2014 at 5:04 PM

THANK YOU VERY MUCH

Reply

Anonymous March 3, 2014 at 7:00 AM

Superb blog....Follow every word as it is and your are done

Reply

Ramakrishna Yalamati March 4, 2014 at 9:58 PM

Thank you so much for your tutorial. This helped me a lot. perfect blog for openCV

beginners.

Reply



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help! I have this message error before passage 5:

CMake Error at CMakeLists.txt:62 (include):

include could not find load file:

cmake/OpenCVUtils.cmake

CMake Error at CMakeLists.txt:64 (ocv_clear_vars):

Unknown CMake command "ocv_clear_vars".

-- Configuring incomplete, errors occurred!

what can I do?

Reply


When i try and run step 5, i get a permission denied error. any ideas?

Reply

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Instalacion OpenCV Ubuntu