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Real time number plate detection using openalpr

  • opening a gate using arduino uno and python

  • Debian 10 Buster Support

  • some packages may not required. but in my process of compiling opencv, openalpr packages, i faced so many source compiling interruptions. so i included all solutions here to run a smooth compilation without a single error.

  • script.py Forked from : https://gist.github.com/jkjung-avt/790a1410b91c170187f8dbdb8cc698c8

  • PS : still learning

OPENALPR Compiling Instructions

//by yuxcat

prerequisites

sudo apt-get update
sudo apt-get upgrade ( proceed with caution : | upgrade all ur packages if the kernal fresh)
cd /usr/local/src
mkdir openalpr

//installing dependencies

sudo apt-get install --assume-yes libpng-dev libpng16-16 libjpeg62-turbo-dev libtiff-dev zlib1g-dev
sudo apt-get install --assume-yes build-essential
sudo apt-get install --assume-yes autoconf automake libtool
sudo apt-get install --assume-yes git-core
sudo apt-get install --assume-yes cmake
#OpenALPR

sudo apt-get install -y default-jdk
sudo apt-get install libcurl4-openssl-dev
sudo apt-get install liblog4cplus-dev
sudo apt-get install liblog4cplus-1.1-9
sudo apt-get install libjna-jni

sudo apt install libcanberra-gtk-module
#Leptonica

sudo apt-get install libopenjp2-7
sudo apt-get install libopenjp2-7-dev
sudo apt-get install libopenjp2-tools
#OCV

sudo apt-get install build-essential
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libdc1394-22-dev

sudo apt-get install gtk+3.0
sudo apt-get install libgtk-3-dev
sudo apt-get install libgtkglext1
sudo apt-get install libgtkglext1-dev
sudo apt-get install libavresample-dev
sudo apt-get install libgstreamer-plugins-base1.0-dev
apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio

//OpenCV

wget http://security.debian.org/debian-security/pool/updates/main/j/jasper/libjasper1_1.900.1-debian1-2.4+deb8u6_amd64.deb
sudo apt-get install libjasper1_1.900.1-debian1-2.4+deb8u6_amd64.deb

//gitclone ocv

git clone https://github.com/opencv/opencv.git

#Current Versions :

#Release 106
#OpenCV 4.5.2

//building

cd /opencv
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..

make
sudo make install

//leptonica

wget http://www.leptonica.org/source/leptonica-1.80.0.tar.gz
tar xf /usr/local/src/openalpr/leptonica-1.80.0.tar.gz

cd /usr/local/src/openalpr/leptonica-1.80/
chmod +x configure
./configure --prefix=/usr/local
make
sudo make install

//tesseract 3.04

cd /usr/local/src/openalpr
wget https://github.com/tesseract-ocr/tesseract/archive/3.04.00.tar.gz
mv tesseract to tesseract-ocr



./autogen.sh
chmod +x configure
./configure
make
sudo make install
sudo ldconfig


#Adding Languages

cd /usr/local/share/tessdata
wget https://github.com/tesseract-ocr/tessdata/raw/master/eng.traineddata

//gitclone openalpr

cd /usr/local/src/openalpr/

git clone https://github.com/openalpr/openalpr.git

cd openalpr/src

nano CMakeLists.txt

add these lines

SET(OpenCV_DIR "/usr/local/lib")
SET(Tesseract_DIR "/usr/local/src/openalpr/tesseract-ocr")
cmake ./
make
sudo make install
#Required

sudo apt-get update
sudo apt-get upgrade
sudo apt autoremove

--caution------only run this if u get libopenalpr.so.2 errors ----- sudo apt-get install libopenalpr-dev dont install other additional dependencies, just run and cancel

pip install numpy