HoW To InStAlL OpEnCv PyThOn AnD C++ In UbUnTu 14.04(LTS)

now we gonna learn about how to install opencv python2 and opencv c++ in ubuntu 14.04(LTS) version

sudo apt-get update
sudo apt-get upgrade

Install many dependencies

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 libeigen3-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 libavformat-dev libswscale-dev default-jdk ant libvtk5-qt4-dev

 To get the OpenCV 2.4.9 source code

cd ~
wget http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.9/opencv-2.4.9.zip
unzip opencv-2.4.9.zip
cd opencv-2.4.9

 Generate mkdir files

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 -D WITH_VTK=ON ..

 Compile and install OpenCV 2.4.9

 

make
sudo make install

  Configure OpenCV

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

now copy

/usr/local/lib

 then press ctrl+x.then save and exit from that

Run followling code for libaries

sudo ldconfig

 now need to open file in that

sudo gedit /etc/bash.bashrc

now copy this two lines into that file at end of page

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

 now opencv python and c++ installed perfectly

to check c++ opencv type in terminal

~/opencv-2.4.9/build/bin/cpp-example-calibration_artificial

to check this lets run sample file.enter following command on terminal for facedetect through pythoncv

python ~/opencv-2.4.9/samples/python2/facedetect.py

$ python

>>import cv2

 when you type and import cv2 in python if anything wrong thats goes next line >>
otherwise error will occurs

p.s
thankss for ur time to read this post


i have tested in my laptop dell 5000 series