Recognition of Text CAPTCHA by using Back Propagation Algorithm of Artificial Neural network
2019 ◽
Vol 8
(9S3)
◽
pp. 1448-1459
Keyword(s):
Text-based CAPTCHA is a very simple type of CAPTCHA which are most widely used. It uses only a group of characters. In this paper, we focus on how Text based CAPTCHA is recognized by machine learning techniques. This paper proposed a method based on Back Propagation algorithm to identify the Text based CAPTCHA. The proposed technique improves the security level of Text-based CAPTCHA storage system by using the Back-propagation method of Artificial Neural Network. We used NNToolbox to train the network in MATLAB software
2011 ◽
pp. 224-263
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2012 ◽
Vol 524-527
◽
pp. 1331-1334
2015 ◽
Vol 9
(3)
◽
pp. 189-200
2016 ◽
Vol 95
◽
pp. 245-252
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2020 ◽
Vol 68
(11)
◽
pp. 156-162