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A Simple Approach to Automatic Filling CAPTCHA using Pattern Recognition

by Ademir B. Santos Neto, Maria Da C. M. Batista, Tiago A. E. Ferreira
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 170 - Number 2
Year of Publication: 2017
Authors: Ademir B. Santos Neto, Maria Da C. M. Batista, Tiago A. E. Ferreira
10.5120/ijca2017914669

Ademir B. Santos Neto, Maria Da C. M. Batista, Tiago A. E. Ferreira . A Simple Approach to Automatic Filling CAPTCHA using Pattern Recognition. International Journal of Computer Applications. 170, 2 ( Jul 2017), 1-7. DOI=10.5120/ijca2017914669

@article{ 10.5120/ijca2017914669,
author = { Ademir B. Santos Neto, Maria Da C. M. Batista, Tiago A. E. Ferreira },
title = { A Simple Approach to Automatic Filling CAPTCHA using Pattern Recognition },
journal = { International Journal of Computer Applications },
issue_date = { Jul 2017 },
volume = { 170 },
number = { 2 },
month = { Jul },
year = { 2017 },
issn = { 0975-8887 },
pages = { 1-7 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume170/number2/28039-2017914669/ },
doi = { 10.5120/ijca2017914669 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-07T00:17:22.248533+05:30
%A Ademir B. Santos Neto
%A Maria Da C. M. Batista
%A Tiago A. E. Ferreira
%T A Simple Approach to Automatic Filling CAPTCHA using Pattern Recognition
%J International Journal of Computer Applications
%@ 0975-8887
%V 170
%N 2
%P 1-7
%D 2017
%I Foundation of Computer Science (FCS), NY, USA
Abstract

This article shows an easy and simple approach to recognize characters in CAPTCHA images, where the k-NN (k nearest neighbor) algorithm is employed. This proposal to recognize characters in CAPTCHA images has the objective of autofill these components in order to support automation of access to systems. The main aim of this article is to show the steps involved in the proposed process about automatic filling CAPTCHAs since the image’s handling until the classification of the characters through a simple and low-cost (implementation) technique of pattern recognition. Experimental results and an error distribution about the characters’ classification are showed, where it is demonstrated the possibility of application in real cases of the proposal presented.

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Index Terms

Computer Science
Information Sciences

Keywords

CAPTCHA pattern recognition classification automation character recognition

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