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Questions tagged [automatic-license-plate-recognition]

100 questions
72
votes
11 answers

How to recognize vehicle license / number plate (ANPR) from an image?

I have a web site that allows users to upload images of cars and I would like to put a privacy filter in place to detect registration plates on the vehicle and blur them. The blurring is not a problem but is there a library or component (open source…
Ryan O'Neill
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2 answers

Localizing JavaAnpr for local license plates

I am working with JavaAnpr to automatically recognize license plates. While it works well with European license plates, it doesn't with my country. For example; How could I edit the recourse files and syntax XML to support other countries?
Meesh
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3 answers

License Plate Recognition - Determining Color Range For Pixel Comparison

Well after much work regarding vehicle plate detection, I've decided that simply finding a 'pattern' of yellow pixels within an image would be a sufficient method of finding the location of a license plate within an image. Currently I use various…
Ash
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14
votes
3 answers

Image preprocessing with OpenCV before doing character recognition (tesseract)

I'm trying to develop simple PC application for license plate recognition (Java + OpenCV + Tess4j). Images aren't really good (in further they will be good). I want to preprocess image for tesseract, and I'm stuck on detection of license plate…
DocC
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13
votes
1 answer

sentencepiece library is not being installed in the system

While using pip install tf-models-official I found the following problem while the library is getting installed:- Collecting tf-models-official Using cached tf_models_official-2.8.0-py2.py3-none-any.whl (2.2 MB) Requirement already satisfied:…
Daremitsu
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9
votes
2 answers

OpenCV Color Concentration Histogram

I am working on an ANPR system using OpenCV and have seen in a few articles a way of doing character segmentation. The idea is to make a graph showing the concentration on color across the image. How do I do this? This is the image that I have: I…
Mike Norgate
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7
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1 answer

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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6
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2 answers

Looking for ANPR/LPR (Automatic Number Plate Recognition/License Plate Recognition) SDK for android

I am looking for ANPR/LPR (Automatic Number Plate Recognition/License Plate Recognition) SDK for android..Is there any SDK for Android? i want to develop a license plate identification software for android , where users can scan a plate using phone…
Hassan Abd El-Tawab
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5
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1 answer

JavaANPR training for different format of plates

I found the JavaANPR library and I want to customize it to read my country's license plates. It seems that the included alphabet is different than what we use ( http://en.wikipedia.org/wiki/FE-Schrift ) Here is an example of a license plate in my…
Cedric Mamo
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4
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ANPR with Python

I've been trying to make an ANPR program in python, i've found this library that in theory would do the trick. While testing however the code works fine, as can be seen here. The only problem is that what i needed the most out of this was the ANPR…
Bernardo Meurer
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4
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4 answers

Compile OpenALPR for Android with NDK

Is there a way to compile the library OpenALPR (https://github.com/openalpr/openalpr) for Android using NDK (ndk-build)?
Rino Seminara
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4
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1 answer

ANPR Character Recognition

I'm implementing an ANPR system. I have managed to obtain a clear cut number plate area from a still vehicle image. I have a problem with certain characters when I am feeding them to the OCR engine. I am using Tesseract and the problem is that…
Mr.Noob
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3
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3 answers

Automatic Vehicle Plate Recognition system

I was currently doing a project on recognizing the vehicle license plate at the rear side, i have done the OCR as the preliminary step, but i have no idea on how to detect the rectangle shaped(which is the concerned area of the car) license plate, i…
anis hoque
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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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EmguCV, Xamarin Forms, C#, ALPR (License Plate Recognition from Smartphone Camera)

Please, I need help with EmguCV ALPR, C#, Xamarin Forms. There are some sample on the web for ALPR, but these require that you take a picture and load it in the the app. What I am looking for is to use EmguCV in a Xamarin Forms App to recognize…
Ogero Ovie
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