added

git-svn-id: http://moon:8086/svn/software/trunk/projects/opencv@739 b431acfa-c32f-4a4a-93f1-934dc6c82436

opencv-4.4.INSTALL

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+# Install packages
+sudo apt-get install build-essential cmake pkg-config
+sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
+sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev
+sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
+sudo apt-get install libxvidcore-dev libx264-dev
+sudo apt-get install libatlas-base-dev gfortran
+sudo apt-get install python2.7-dev python3-dev
+
+# Get PIP
+wget https://bootstrap.pypa.io/get-pip.py
+sudo python3 get-pip.py
+
+# It’s standard practice in the Python community to be using virtual 
+# environments of some sort, so I highly recommend that you do the same:
+sudo pip install virtualenv virtualenvwrapper
+sudo rm -rf ~/.cache/pip
+
+# virtualenv and virtualenvwrapper
+export WORKON_HOME=$HOME/.virtualenvs
+export VIRTUALENVWRAPPER_PYTHON=$(which python3)
+source /usr/local/bin/virtualenvwrapper.sh
+echo -e "\n# virtualenv and virtualenvwrapper" >> ~/.profile
+echo "export WORKON_HOME=$HOME/.virtualenvs" >> ~/.profile
+echo "source /usr/local/bin/virtualenvwrapper.sh" >> ~/.profile
+
+# Python2 or Python3
+mkvirtualenv cv -p python3
+
+# Change to env
+source ~/.profile
+workon cv
+
+# Install python packages
+pip install numpy
+pip install imutils
+pip install matplotlib
+pip install picamera
+
+# Get opencv source code
+
+wget -O opencv.zip https://github.com/opencv/opencv/archive/4.4.0.zip
+
+# Unzip archives
+unzip opencv.zip
+
+# Compile opencv
+cd ~/opencv-4.4.0/
+mkdir build
+cd build
+cmake -D CMAKE_BUILD_TYPE=RELEASE \
+    -D CMAKE_INSTALL_PREFIX=/usr/local \
+    -D INSTALL_PYTHON_EXAMPLES=ON \
+	-D WITH_OPENMP=ON \
+    -D BUILD_EXAMPLES=ON ..
+
+make -j4
+
+# Install
+sudo make install
+sudo ldconfig
+
+# Finish installation
+cd /usr/local/lib/python3.8/site-packages/cv2/python-3.8
+sudo mv cv2.cpython-38-x86_64-linux-gnu.so cv2.so
+cd ~/.virtualenvs/cv/lib/python3.8/site-packages/
+ln -s /usr/local/lib/python3.8/site-packages/cv2/python-3.8/cv2.so cv2.so
+
+# Test installation
+source ~/.profile 
+workon cv
+python
+>>> import cv2
+>>> cv2.__version__
+'3.2.0'
+>>>
+
+
+