This guide will show how to install OpenCV 4.5.0 (latest) on Raspberry Pi 4B running Ubuntu Server 20.04, where architecture is ARM64 (aarch64) – which is unusal part.

but installing procedure never changes – thanks to CMake. We can build own library within Raspberry Pi with following tutorials.

OpenCV-aarch64

This is a guide to natively install OpenCV on aarch64/arm64 devices (Updated 2020-12-13, by @LimeOrangePie)

Pre-requisites

Your aarch64 device should have Ubuntu/Debian/Armbian OS flashed on it.

Steps

1. Install dependencies

sudo apt-get install python3-dev python3-pip python3-numpy

sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev  libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libdc1394-22-dev protobuf-compiler libgflags-dev libgoogle-glog-dev libblas-dev libhdf5-serial-dev liblmdb-dev libleveldb-dev liblapack-dev libsnappy-dev libprotobuf-dev libopenblas-dev libgtk2.0-dev libboost-dev libboost-all-dev libeigen3-dev libatlas-base-dev libne10-10 libne10-dev

pip3 install neon

sudo apt-get install libneon27-dev

sudo apt-get install libneon27-gnutls-dev

2. Download Source

cd ~/

git clone https://github.com/opencv/opencv.git -b 4.5.0 --single-branch

git clone https://github.com/opencv/opencv_contrib.git -b 4.5.0 --single-branch

3. Configuring OpenCV using cmake:

Put your username in place of [username] below for the path to opencv_contrib/modules

mkdir opencv_build

cd opencv_build

cmake -D CMAKE_BUILD_TYPE=RELEASE -D ENABLE_NEON=ON -D ENABLE_TBB=ON -D ENABLE_IPP=ON -D ENABLE_VFVP3=ON -D WITH_OPENMP=ON -D WITH_CSTRIPES=ON -D WITH_OPENCL=ON -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=../opencv_contrib/modules/ ../opencv

4. Compilation:

make -j${nproc}

sudo make install

5. Testing:

python3
>>import cv2
>>

Repository: https://github.com/jungin500/OpenCV-aarch64

Original Repository: https://github.com/huzz/OpenCV-aarch64