A updated installation of OpenCV on Ubuntu 17.04. Also provides command line argument to compile ARM binaries aimed at Raspberry Pi

install.sh

#!/bin/bash
VERSION=3.3.0 
PYTHON=/usr/bin/python3

if [ $1 == "arm" ]; then
	echo "Compiling for ARM (Raspberry Pi)"

	sudo apt-get install gcc-arm-linux-gnueabi
	sudo apt-get install gcc-arm-linux-gnueabihf
	
	CROSS_COMPILE="-D CMAKE_TOOLCHAIN_FILE=$(pwd)/opencv/platforms/linux/arm-gnueabi.toolchain.cmake"
fi

sudo apt-get install -y libtiff5-dev libavcodec-dev libavformat-dev libswscale-dev libdc1394-22-dev libxine2-dev libv4l-dev   libqt4-dev libgtk2.0-dev libtbb-dev libatlas-base-dev libfaac-dev libmp3lame-dev libtheora-dev libvorbis-dev libxvidcore-dev libopencore-amrnb-dev libopencore-amrwb-dev x264 v4l-utils
sudo apt-get install -y libprotobuf-dev protobuf-compiler libgoogle-glog-dev libgflags-dev libgphoto2-dev libeigen3-dev libhdf5-dev doxygen
sudo apt-get install -y gcc-5
sudo apt-get install -y python-dev python-pip python3-dev python3-pip
sudo -H pip3 install -U pip numpy

# Get linux distribution.
export $(cat /etc/lsb-release | grep DISTRIB_RELEASE)
export $(cat /etc/lsb-release | grep DISTRIB_ID) 

# Install Caffe for some libraries to compile correctly.
if [ $DISTRIB_ID=="Ubuntu" && $DISTRIB_RELEASE < 17.04 ]; then
	sudo apt-get install libprotobuf-dev libleveldb-dev libsnappy-dev libopencv-dev libhdf5-serial-dev protobuf-compiler
	sudo apt-get install --no-install-recommends libboost-all-dev
fi

if [ -x "usr/bin/nvcc" ]; then
	sudo apt install caffe-cuda
else
	sudo apt install caffe-cpu
fi

# Clone OpenCV and checlout wanted version.
if [ ! -d opencv ]; then
    git clone https://github.com/opencv/opencv.git
fi

cd opencv 
git checkout $VERSION
cd ..

# Clone OpenCV Contrib and checlout wanted version.
if [ ! -d opencv_contrib ]; then
    git clone https://github.com/opencv/opencv_contrib.git
fi

cd opencv_contrib
git checkout $VERSION
cd ..

cd opencv

if [ ! -d build ]; then
	mkdir build
fi

cd build

cmake -D CMAKE_BUILD_TYPE=RELEASE \
	-D CMAKE_INSTALL_PREFIX=/usr/local \
	-D INSTALL_C_EXAMPLES=ON \
	-D INSTALL_PYTHON_EXAMPLES=ON \
	-D PYTHON_EXECUTABLE=$(PYTHON) \
	-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 CUDA_NVCC_FLAGS="-ccbin gcc-5" \
	$CROSS_COMPILE \
	-D BUILD_EXAMPLES=ON ..
 
make -j$(nproc)

if [ -n $CROSS_COMPILE ]; then
	echo "Installing as local binaries"
	sudo make install -j$(nproc)
	sudo sh -c 'echo "/usr/local/lib" >> /etc/ld.so.conf.d/opencv.conf'
	sudo ldconfig
else
	echo "Since you are specifically compiling for ARM the binaries will not be installed"
fi