sudo nano /etc/dphys-swapfile CONF_SWAPSIZE=2048 sudo /etc/init.d/dphys-swapfile stop && sudo /etc/init.d/dphys-swapfile start
A prebuilt binary debian package of OpenCV 4.0.1 for Raspberry Pi 3. It depends on Tesseract 4 and VC4CL by doe300.
First, install rpi3-vc4cl binary packages which describes in https://github.com/thortex/rpi3-vc4cl/ .
Then, Install Leptonica, Tesseract OCR, and OpenCV debian packages by typing the following steps:
git clone https://github.com/thortex/rpi3-opencv.git
cd rpi3-opencv/release
./install_requires_related2leptonica.sh
./install_requires_related2tesseract.sh
./install_requires_related2opencv.sh
./install_tesseract.sh
./install_opencv.sh
| Option | Support |
|---|---|
| Build Type | Release |
| Install Prefix | /usr/local |
| Eigen | ON |
| gstreamer | ON |
| GTK | ON |
| Jasper | ON |
| JPEG | ON |
| OpenEXR | ON |
| PNG | ON |
| TIFF | ON |
| V4L | ON |
| LIBV4L | ON |
| VTK | ON |
| LAPACK | ON |
| LAPACKE | ON |
| protobuf | ON |
| 1394 | ON |
| ffmpeg | ON |
| gphoto2 | ON |
| Qt | ON |
| TBB | ON |
| WebP | ON |
| unicap | ON |
| cxx11 | ON |
| NEON | ON |
| VFPV3 | ON |
| OpenMP | ON |
| OpenCL | ON |
| OpenGL | OFF |
| OpenNI | OFF |
| GDAL | OFF |
| CUDA | OFF |
| XINE | OFF |
| Board | Support |
|---|---|
| 3 Model B+ | May Yes |
| 3 Model B | Yes |
| 2 Model B v1.2 | May Yes |
| 2 Model B | No |
| 1 Model B+ | No |
| 1 Model B | No |
| Model A | No |
| Model A+ | No |
| Zero | No |
| Zero W | No |
| Computer Module 1 | No |
| Computer Module 3 | May Yes |
| Computer Module 3 Lite | May Yes |
sudo apt-get update
sudo apt-get upgrade -y
./setup/019_checkinstall.sh
./setup/030_build_opencv.sh
./setup/031_install_opencv.sh
./setup/032_update_deps.sh
| Option | Value |
|---|---|
| -mtune | cortex-a53 |
| -march | armv8-a+crc |
| -mcpu | cortex-a53 |
| -mfpu | crypto-neon-fp-armv8 |