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Questions tagged [automatic-license-plate-recognition]

100 questions
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SyntaxError: Unexpected end of JSON input: ALPR using Node and Javascript

The program prints perfectly when there is no License Plate in the frame, but when there is, I get the SyntaxError. Node.js and OpenALPR is installed. Photos are successfully being taken also. const PiCamera = require('pi-camera'); function…
RO'D
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can't recognize correctly license plate (Python, OpenCv, Tesseract)

I'm trying to recognize a license plate but got error such as wrong/not reading the character Here's a visualization of each step: Obtained mask from color thresholding + morph closing Filter for license plate contours highlighted in green Pasted…
elandh ricky
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How to show warning when item in json cannot be detected using C#

I'm making a license plate recognition system using USB camera. The camera will scan a license plate number and show it's detail on label. But if the camera didn't scan/detect any license plate, i wanted the system to show a warning error to show…
Yonce
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Element 0 value is unsupported

Below is my code which i took it from github and modifying according to my need, it is showing me an error at the line print(characters) when i am trying to take the characters as string in the variable from the video and to insert them in the…
Mohd Nabeel
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Reading Philippine License Plate (OCR or ANPR)

I need to read the a license plate issued in the Philippines I tried GooglePlayServices.Vision [TextRecognizer] but it is giving me inaccurate results. I also tried some sample ANPR apps but the apps is also giving inaccurate results. I think the…
jase
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why do i get error of alpr even after installing openalpr on my raspberry pi 3?

I'm trying to use openalpr for recognizing number plates of moving vehicles from a video using raspberry pi 3 with jessie os. I have installed tesseract 3,OpenCV3 and Openalpr. I have installed following this link: …
adari.girishkumar
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Python JSON Object Must Be str, not 'tuple'

My code is crashing with the following error: TypeError: the JSON object must be str, not 'tuple' I have printed the communicate from ALPR and I receive the following: (b'plate0: 10 results\n - SBG984\t confidence: 85.7017\n - SBG98\t…
Curtis Boylan
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'OcrEngineMode' does not contain a definition for 'TesseractCubeCombined'

I'm trying to just simply run the code from this example, but I get loads of errors including 'OcrEngineMode' does not contain a definition for 'TesseractCubeCombined' What is going on here? Am I using the wrong version of emgu and if so, could…
Bassie
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JavaAnpr for local plate recognition

I am using JavaAnpr to recognize for my country(Kazakhstan) number plates. It doesn't recognize correctly. I looked these links: JavaANPR local plate recegtion (Localizing), Localizing JavaAnpr for local license plates and I modified syntax.xml and…
Nuradil
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Why I m getting javacv assertion exception in this code?

Hi I started using JavaCv a couple days ago, I have seen this tutorial who's made in c++, I m trying to adapt it in java so my code is as below : Mat source_image = Imgcodecs.imread(ocrReadFrom); Mat gray_image = new Mat(); Mat…
Mohammed Housseyn Taleb
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Number plate recognition using android

I was wondering if anybody new of a way that I could use of scanning a registration plate on a car and then adding that number to a string inside java? I have been looking around a bit and came across this…
Luke Kavanagh
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how to remove all non-character objects from license plate image?

I'm developing an ANPR for Persian plates, I've found the way to find plate, and with some methods I have reached the image below, now I need to remove all non-character objects from the image to process them later. there are some similar questions…
alireza_fn
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Using OpenALPR C# wrapper

I am currently working on automatic licence plate recognition program using the OpenALPR Library found here. I would like to take advantage of the C# wrappers available for the library. However when I attempt to compile the example application found…
Anthony Phan
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CCTV Automatic number plate recognition and integration of data,software?

I have a client who is looking for a solution to integrate cctv with a (any) ANPR solution that can,I assume recognize the number plate of cars and store in a database and has the ability to post this data to other backoffice applications, crm,…
abmv
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Java ANPR project with webcam connectivity

I am working on a project named as ANPR and while searching for guide I found a link on JavaANPR. Its a great project, but I want that project to be connected with my webcam so the number plates can be recognized directly from webcam not from still…
mrabro
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