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Questions tagged [openalpr]

Automatic License Plate Recognition library

OpenALPR is an open source Automatic License Plate Recognition library written in C++ with bindings in C#, Java, Node.js, and Python. The library analyzes images and video streams to identify license plates. The output is the text representation of any license plate characters.

http://www.openalpr.com

72 questions
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OpenALPR not work with PyQt

I tried to build a GUI app with PyQt and openalpr, but there are an issue with my code. A simple example: from openalpr import Alpr from PyQt4 import QtCore, QtGui class AnalizePlate(object): def __init__(self): self.alpr = None …
Aleksandar
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How to Create Traineddata file For Tesseract 4.1.0

I want to recognise the characters of NumberPlate. How to train the tesseract-ocr for respective number plate in ubuntu 16.04. Since i don't familiar with training. Please help me to create a 'traineddata' file for recognizing numberplate. I have…
Grv
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3 answers

Install Openalpr in Windows python

I am using Windows 10 and I want to install openalpr and import the library to python. However, after downloaded the Pre-compiled Windows binaries, I dont know how ti import alpr in python I follow the instruction in OpenAlpr I downloaded the…
VICTOR
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Running openalpr using python in windows

I created an environment and installed openalpr using pip install openalpr followed by downloading the openalpr from https://github.com/openalpr/openalpr/releases and installing python binding using command python setup.py install The code which I…
Kushagar-Mahajan
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Segmentation fault in recognize_ndarray OpenALPR

I’m trying to detect plates using openalpr + python with an IP cam, but I’m getting the following error: The openalpr version is the Open Source. I've alrealdy tryied before recognize_file function, unscessufully Fatal Python error: Segmentation…
ALima
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React Native Plate Scanning Not Working. My phone will read and scan the plate PROBLEM (There are no 64bit libs for Android.)

React Native plate not scanning. My problem is I can't get any errors. However it still doesn't work sample site Library : OpenALPR and OPENCV RESULT:
Yatli
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Run openalpr using Python

At Ubuntu 18.04 I successfully installed openalpr and tested it. Now I want to use python to call it. To do this, I installed https://pypi.org/project/openalpr/ pip install openalpr But I'm having trouble with the paths, the ones in the example…
Jekson
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How to fix ''Alpr' object has no attribute 'loaded'' error in Python 3.x

i'm setting up a recognize of plate with python but i can't use the library 'OpenALPR' because send me a error OpenalPR Load Error try: if platform.system().lower().find("windows") != -1: self._openalprpy_lib =…
Marcelo Nicolas
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AttributeError: 'dict' python opencv and openalpr

Just having a play around with drawing on webcam stream with opencv and and openalpr, I have both of them working on their own but when I add them together i get this error. Invalid pattern provided: auwide Valid patterns are located in the…
John Alex
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1 answer

How to bind openalpr with python on a mac?

I recently installed openalpr on my mac using brew install openalpr with success. I would like to use the openalpr library with python 2.7 but I am having difficulty binding the two and could use some help. I currently get the following in my…
panthor314
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Cant get RTSP stream - nonmatching

I'm using Raspberry Pi3 and I`m trying to get a RTSP stream through my wireless IP camera, but I'm getting this error: pi@raspberrypi:~ $ alprd -f INFO - Running OpenALPR daemon in the foreground. INFO - Using: /etc/openalpr/alprd.conf for daemon…
Marcus Alves
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OSX compiling openalpr errors on make

Trying to compile openalpr for OSX, get errors: [ 62%] Building CXX object misc_utilities/CMakeFiles/openalpr-utils-classifychars.dir/classifychars.cpp.o /Users/dd/Documents/opencv/openalpr/src/misc_utilities/classifychars.cpp:207:31: error:…
ddintzner
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Die : PlatformToolset v120 is not installed

I'm trying to install Openalpr on my Windows 10 (x64) laptop following this tutorial Openalpr for Windows but when I'm on the step Build a release build for x64 targeting toolchain v120 I get the following error in Windows Powershell: Die :…
yamilelias
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Can not generate openaplr.framework in mac by using OpenALPR library

I am using https://github.com/twelve17/openalpr-ios this library to analyse license plate images and get license number from it. when i try to run ruby script in mac to generate openaplr.framework it gives me error. This is the error i am…
Ekta Padaliya
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Openalpr directory error

I tried python code with openalpr library to identify number plate. When I try to get plate number I got following error. Warning: You are running an unsupported version of Tesseract. Expecting at least 3.03, your version is: 3.02.02 Error opening…
user38701
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