License plate recognition for iOS using OpenCV & Tesseract OCR Engine
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ANPR.xcodeproj first commit Aug 29, 2013
ANPR README.md Aug 29, 2013
opencv2.framework first commit Aug 29, 2013
.gitignore first commit Aug 29, 2013
README.md README.md Aug 29, 2013
input.png README.md Aug 29, 2013
output.png README.md Aug 29, 2013

README.md

#ANPR Source code for a License plate recognition (ANPR) demo for iOS using OpenCV and Tesseract OCR engine.

#Example

###Input Alt text

###Output Alt text

#Introduction

  • Experimental project
  • Require <opencv2.framework>
  • Tesseract OCR lang file (testdata/eng.traineddata) was trained using this Gist script file and a License Plate font.

#Version 1.0

##Improvements

  • Improve image processing.
  • Improve square (plate) detection.
  • Perspective transform (or 3D).
  • Improve contour detection algorithm.
  • Improve ROI license plate area.
  • Better image crop.

##Supports

  • iOS 6.0 or later.
  • Xcode 4.6 (ARC enabled).
  • Required frameworks: opencv2, UIKit, CoreGraphics and ImageIO.

#Contact Follow @chroman

I'm open to any pull request that can improve this project.

#License

Copyright (c) 2013 Christian Roman, Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ‘Software’), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED ‘AS IS’, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.