License Plate Recognition For Vehicles

_An Automatic License Plate Recognition System

This system can detect and recognize 2 types of license plate , rectangle plates and partially square plates.

About

A Python programme that uses concepts of image processing and OCR to identify the characters on a given vehicle licence plate. The OCR aspect was done with machine learning to differentiate and recognise the licence plate amongst multiple colour spaces within images.

Goal

The goal is to be able to differentiate the noise from the licence plate for any given image and to detect the licence plate for any given image of the same camera for any vehicle, and segment the characters to be ready for recognition.

Functionality

A GUI interface that makes image selection easier using ImageTk
Performs all the stages of Automatic License plate recognition (ALPR); plate localization, character segmentation and character recognition
You can generate your model that will be used by the ALPR
You can use your own training data
Easy visualization for debugging purposes

Method

Plate detection
- Image Processing Techniques for transformation followed my morphological preprocessing
- Finding contours which satisfy the ratio of the plate to get the possible plates
- Checking for characters on the possible plates found to assure it is a license plate.
Plate recognition
- For character recognition, I used Tesseract as it was lightweight and suitable for real-time recognition.

Dependencies

The program was written with Python 3.9.13 and the following python packages are required

import tkinter as tk
from tkinter import *
from tkinter.filedialog import askopenfilename
import cv2
import imutils
import numpy as np
import pytesseract
from PIL import Image, ImageTk
from imutils.contours import sort_contours

Implementation

Clone the repository or download the zip git clone https://github.com/leenock/-license-plate-detect.git
install location of Tesseract-OCR in your system -- specify the directory after installing tesseract on the program code
run test_image.py for testing on an image.