Questions tagged [automatic-license-plate-recognition]
100 questions
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Different types of augmentations to be used for APR?
I am trying to do automatic number plate recognition but I have very few data. In order to increase the data, I tried translation, rotation and addition of noise. Can someone suggest me some other data augmentation techniques, which can be used in…

Ashna Eldho
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How to tune tesseract for identifying number plate of a car more accurately?
I have a code to detect and identify the car number plate and convert the image into text using tesseract.
I am using openCV to localise the number plate.
The problem that I am facing is that tesseract is not accurately identifying the number. Is…

akshit bhatia
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Run cURL command in Python 2.7
I need to run
curl -H "Accept: application/json+v6" -H "x-api-key: " \https://beta.check-mot.service.gov.uk/trade/vehicles/mot-tests\?registration=ZZ99ABC
In Python 2.7. I've looked into using requests but I'm unsure how to structure…

Heisenberg
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ANPR for XamarinFroms
We are searching best ANPR (Automatic Number Plate Reader/Recognition) for Xamarin.Forms. I have already gone through AnyLine and OpenAlpr.
AnyLine seems to be high cost, based on image capture counts.
Regarding OpenAlpr we have a workable solution…

Sarathi
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ANPR Data Sets For Deep Learning
I am working on an ANPR application for UAE license plates which differ themselves from one another in shapes and partial different colours. As to make a prototype I like to use transfer learning with around 1000 images of license plates.
My first…

Ashiq KS
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deep anpr error in code python ?https://github.com/matthewearl/deep-anpr
if __name__ == "__main__":
im = cv2.imread(sys.argv[1])
im_gray = cv2.cvtColor(im, cv2.COLOR_BGR2GRAY) / 255.
f = numpy.load(sys.argv[2])
param_vals = [f[n] for n in sorted(f.files, key=lambda s: int(s[4:]))]
for pt1, pt2,…

Malik Aqib Mahl
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Best approach to build a model to recognise licence plates (ALPR)
I am trying to make a deep learning model to detect and read number plates using deep learning techniques like CNN. I would be making a model in tensorflow. But i still don't know what can be the best approach to build such model.
i have checked few…

Arpit Khurana
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reduce CPU overhead while proccessing Video Stream
I am developing C# WPF Auto Number Plate Recognition Using an OCR.
The Flow is, i am getting a pictures from a video stream MJPEG and this images should be passed to the OCR to get the plate number and other details.
The problem is : the Video…

Moayad Rayyan
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Using JavaANPR on close-up number plate images
I'm trying to use JavaANPR API (via Maven) on some photos I've taken, unfortunately with no success. I've also tried it with the supplied sample images and it works great with them.
Seems like the main problem is that my photos only contain the…

gvasquez
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How to extract the numbers in license plate?
I'm using OpenCV to implement ANPR program.
I tried to extract the numbers in the plate. The sample code is below
adaptiveThreshold(src_gray, binary_image, THESHOLD_MAX, ADAPTIVE_THRESH_GAUSSIAN_C, CV_THRESH_BINARY_INV, BLOCK_SIZE,…

TTGroup
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is it good to train a classifier for each character in ANPR?
I'm trying to create ANPR (for Persian character plates), the only solution I have came up with, is to train a classifier for each character but I 'm sure it should take a lot time to train classifier for each character also it should not have good…

alireza_fn
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Compute Vertical Gradients for License Plate Localization
I am new with MATLAB and trying to implement the following step of License Plate Localization:
Here's my progress so far.
Code:
[rows,cols] = size(img);
image_gradient = zeros(rows,cols);
for i =1:1:rows
for j =1:1:cols-1
…

Raj Kumar
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how to auto censor/blur numberplates with js?
Does anyone know a nice way to automatically blur /censor number plates /license plates from jpegs preferably in javascript!? Or do all of you do this by hand? Couldn't figure one out yet...

Marc Giersch
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Tesseract ANPR for Android
I'm using tesseract-android-tools (pre-built lib) for ANPR. But having problem when the image background is worse. Can anybody suggest how can I focus/get rectangular area of/from image taken from camera. Despite of searching the forum I'm unable to…

Ahmed Faraz
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Tesseract DoOcr method exits the application
Hi guys I am new to OCR and Tesserect as well. I was trying to do an OCR on an image but my application keeps exiting when I try to reach this particular line
ocrText = ocr.DoOCR(npList[1], plateList[1]);
Previously it threw an exception saying it…

Mr.Noob
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