Merge pull request spmallick#132 from vishwesh5/master

Add installation scripts

InstallScripts/installOpenCV-18-04.sh

@@ -0,0 +1,210 @@
+#!/bin/bash
+
+############## WELCOME #############
+# Clean build directories
+
+rm -rf opencv/build
+rm -rf opencv_contrib/build
+rm -rf installation
+
+# Step 0: Take inputs
+echo "OpenCV installation by learnOpenCV.com"
+
+echo "Select OpenCV version to install (1 or 2)"
+echo "1. OpenCV 3.4.1 (default)"
+echo "2. Master"
+
+read cvVersionChoice
+
+cvVersionChoice=1
+
+if [ "$cvVersionChoice" -eq 2 ]; then
+	cvVersion="master"
+else
+	cvVersion="3.4.1"
+fi
+
+# Save current working directory
+cwd=$(pwd)
+
+# Create installation directory
+mkdir installation
+mkdir installation/OpenCV-"$cvVersion"
+
+# Step 1: Update packages
+echo "Updating packages"
+
+sudo apt -y update
+sudo apt -y upgrade
+
+echo "================================"
+
+echo "Complete"
+
+# Step 2: Install OS libraries
+echo "Installing OS libraries"
+
+sudo apt -y remove x264 libx264-dev
+
+## Install dependencies
+sudo apt -y install build-essential checkinstall cmake pkg-config yasm
+sudo apt -y install git gfortran
+sudo apt -y install libjpeg8-dev libpng-dev
+
+sudo apt -y install software-properties-common
+sudo add-apt-repository "deb http://security.ubuntu.com/ubuntu xenial-security main"
+sudo apt -y update
+
+sudo apt -y install libjasper1
+sudo apt -y install libtiff-dev
+
+sudo apt -y install libavcodec-dev libavformat-dev libswscale-dev libdc1394-22-dev
+sudo apt -y install libxine2-dev libv4l-dev
+cd /usr/include/linux
+sudo ln -s -f ../libv4l1-videodev.h videodev.h
+cd "$cwd"
+
+sudo apt -y install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
+sudo apt -y install libgtk2.0-dev libtbb-dev qt5-default
+sudo apt -y install libatlas-base-dev
+sudo apt -y install libfaac-dev libmp3lame-dev libtheora-dev
+sudo apt -y install libvorbis-dev libxvidcore-dev
+sudo apt -y install libopencore-amrnb-dev libopencore-amrwb-dev
+sudo apt -y install libavresample-dev
+sudo apt -y install x264 v4l-utils
+
+# Optional dependencies
+sudo apt -y install libprotobuf-dev protobuf-compiler
+sudo apt -y install libgoogle-glog-dev libgflags-dev
+sudo apt -y install libgphoto2-dev libeigen3-dev libhdf5-dev doxygen
+
+echo "================================"
+
+echo "Complete"
+
+# Step 3: Install Python libraries
+echo "Install Python libraries"
+
+sudo apt -y install python-dev python-pip python3-dev python3-pip
+sudo -H pip2 install -U pip numpy
+sudo -H pip3 install -U pip numpy
+sudo apt -y install python3-testresources
+
+# Install virtual environment
+sudo -H pip2 install virtualenv virtualenvwrapper
+sudo -H pip3 install virtualenv virtualenvwrapper
+echo "# Virtual Environment Wrapper" >> ~/.bashrc 
+echo "source /usr/local/bin/virtualenvwrapper.sh" >> ~/.bashrc
+source /usr/local/bin/virtualenvwrapper.sh
+echo "================================"
+
+echo "Complete"
+
+echo "Creating Python environments"
+
+############ For Python 2 ############
+# create virtual environment
+mkvirtualenv OpenCV-"$cvVersion"-py2 -p python2
+workon OpenCV-"$cvVersion"-py2
+
+# now install python libraries within this virtual environment
+pip install numpy scipy matplotlib scikit-image scikit-learn ipython
+
+# quit virtual environment
+deactivate
+######################################
+
+############ For Python 3 ############
+# create virtual environment
+mkvirtualenv OpenCV-"$cvVersion"-py3 -p python3
+workon OpenCV-"$cvVersion"-py3
+
+# now install python libraries within this virtual environment
+pip install numpy scipy matplotlib scikit-image scikit-learn ipython
+
+# quit virtual environment
+deactivate
+######################################
+echo "================================"
+echo "Complete"
+
+# Step 4: Download opencv and opencv_contrib
+echo "Downloading opencv and opencv_contrib"
+git clone https://github.com/opencv/opencv.git
+cd opencv
+git checkout $cvVersion
+cd ..
+
+git clone https://github.com/opencv/opencv_contrib.git
+cd opencv_contrib
+git checkout $cvVersion
+cd ..
+echo "================================"
+echo "Complete"
+
+# Step 5: Compile and install OpenCV with contrib modules
+echo "================================"
+echo "Compiling and installing OpenCV with contrib modules"
+
+cd opencv
+mkdir build
+cd build
+
+# For system wide installation:
+# Change CMAKE_INSTALL_PREFIX=/usr/local \
+
+cmake -D CMAKE_BUILD_TYPE=RELEASE \
+	-D CMAKE_INSTALL_PREFIX="$cwd"/installation/OpenCV-"$cvVersion" \
+	-D INSTALL_C_EXAMPLES=ON \
+	-D INSTALL_PYTHON_EXAMPLES=ON \
+	-D WITH_TBB=ON \
+	-D WITH_V4L=ON \
+	-D WITH_QT=ON \
+	-D WITH_OPENGL=ON \
+	-D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules \
+	-D BUILD_EXAMPLES=ON ..
+
+make -j4
+
+make install
+
+# Create symlink in virtual environment
+py2binPath=$(find "$cwd"/installation/OpenCV-"$cvVersion"/lib/ -type f -name "cv2.so")
+py3binPath=$(find "$cwd"/installation/OpenCV-"$cvVersion"/lib/ -type f -name "cv2.cpython*.so")
+
+# Link the binary python file
+cd ~/.virtualenvs/OpenCV-"$cvVersion"-py2/lib/python2.7/site-packages/
+ln -f -s "$py2binPath" cv2.so
+
+cd ~/.virtualenvs/OpenCV-$cvVersion-py3/lib/python3.6/site-packages/
+ln -f -s "$py3binPath" cv2.so
+
+# Print instructions
+echo "================================"
+echo "Installation complete. Printing test instructions."
+
+echo workon OpenCV-"$cvVersion"-py2
+echo "ipython"
+echo "import cv2"
+echo "cv2.__version__"
+
+if [ $cvVersionChoice -eq 2 ]; then
+       echo "The output should be 4.0.0-pre"
+else
+       echo The output should be "$cvVersion"
+fi
+
+echo "deactivate"
+
+echo workon OpenCV-"$cvVersion"-py3
+echo "ipython"
+echo "import cv2"
+echo "cv2.__version__"
+
+if [ $cvVersionChoice -eq 2 ]; then
+      echo "The output should be 4.0.0-pre"
+else
+      echo The output should be "$cvVersion"
+fi
+echo "deactivate"
+echo "Installation completed successfully"

README.md

@@ -5,7 +5,8 @@ Learn OpenCV  : C++ and Python Examples. You can find the details at [LearnOpenC
 
 | Blog Post        | |
 | ------------- |:-------------|
-|[Install OpenCV 4 on Ubuntu 16.04](https://www.learnopencv.com/install-opencv-4-on-ubuntu-16-04/) | [Code](https://github.com/spmallick/learnopencv/tree/master/InstallScript-Ubuntu16.04) |
+|[Install OpenCV 4 on Ubuntu 18.04](https://www.learnopencv.com/install-opencv-4-on-ubuntu-18-04/) | [Code](https://github.com/vishwesh5/learnopencv/blob/master/InstallScripts/installOpenCV-18-04.sh) |
+|[Install OpenCV 4 on Ubuntu 16.04](https://www.learnopencv.com/install-opencv-4-on-ubuntu-16-04/) | [Code](https://github.com/vishwesh5/learnopencv/blob/master/InstallScripts/installOpenCV-16-04.sh) |
 |[Multi-Person Pose Estimation in OpenCV using OpenPose](https://www.learnopencv.com/multi-person-pose-estimation-in-opencv-using-openpose/) | [Code](https://github.com/spmallick/learnopencv/tree/master/OpenPose-Multi-Person) |
 |[Heatmap for Logo Detection using OpenCV (Python)](https://www.learnopencv.com/heatmap-for-logo-detection-using-opencv-python/) | [Code](https://github.com/spmallick/learnopencv/tree/master/heatmap)|
 |[Deep Learning based Object Detection using YOLOv3 with OpenCV ( Python / C++ )](https://www.learnopencv.com/deep-learning-based-object-detection-using-yolov3-with-opencv-python-c/) | [Code](https://github.com/spmallick/learnopencv/tree/master/ObjectDetection-YOLO)|