Open AccessCAPTCHA Analysis using Convolution Filtering
Author(s) -
KeunYoung Kim,
Dong-Oh Shin,
Kyung-Hee Lee,
DaeHun Nyang
Publication year - 2014
Publication title -
journal of the korea institute of information security and cryptology
Language(s) - Uncategorized
Resource type - Journals
eISSN - 2288-2715
pISSN - 1598-3986
DOI - 10.13089/jkiisc.2014.24.6.1129
Subject(s) - captcha , computer science , convolution (computer science) , filter (signal processing) , noise (video) , artificial intelligence , image (mathematics) , computer vision , artificial neural network
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