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Algorithm implementation of the "The Robustness of “Connecting Characters Together” CAPTCHAs". The test data set is the TAOBAO CAPTCHA that composed of blue character and white background.
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CAPTCHA
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README.md

README.md

1.This repository created in C# VS2013-x64, It contains the following function:

  • merged characters segmentation algorithm according "The Robustness of “Connecting Characters Together” CAPTCHAs".
  • Sauvola binarization
  • OTSU binarization
  • Iteration binarization
  • Zhang-Suen skeletonization

2.The test data set is the TAOBAO CAPTCHA that composed of blue character and white background.

3.Get more information about the algorithm from http://livezingy.com/the-theory-of-segmentation-for-merged-characters/ Test result

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