(🇵🇱) Plate Recognition

Console App created in MS Visual Studio 2017 enables one to read registracion number from graphic file.

Table of contents

• Technologies
• Algorithm
• Status of project

Technologies

Project is created with:

• C# (.Net Framework 4.7.2)
• EmguCV (ver. 4.4.0.4061)

PM> Install-Package Emgu.CV -Version 4.4.0.4061

Algorithm

1. Detect a plate

Original photo with plate

1.1

A blue mask is applied to the original image...

1.2

...and a white one.

1.3

Both images (1.1 and 1.2) are merged into one with possible areas of white part of plate.

1.4

The program searches for vertices of biggest area (of image 1.3)

2. Abstract a plate

Program dissects the white part of image from image 1.3 with use the corners found at image 1.4. Then it reshape plate to the best possible to read data. In the end of this step it mark the contours of every single sign.

3. Reading a registration number

Every rectangular area described by contour (in the end of 2.) is read by SVM algorithm assign. In the end they are assembled together into plate number.

Status of project

Essentially its done. Single plate is recognited in time less than 1s.