A Survey on Breaking Technique of Text-Based CAPTCHA

<div class="floats-full-page floats-full-page-figure"><h2>Figure 12</h2><div class="floats-full-page-caption"><div>The pixel count for each of the letters A to Z in [<a href="../../6898617/#B31">34</a>].</div></div><div class="floats-full-page-content"><table class="figure-group"><tr class="fig-image"><td><object data="https://static-01.hindawi.com/articles/scn/volume-2017/6898617/figures/6898617.fig.0012.svgz" name="6898617.fig.0012" type="image/svg+xml"></object></td></tr></table></div></div>

Figure 12 | A Survey on Breaking Technique of Text-Based CAPTCHA

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Figure 12: A Survey on Breaking Technique of Text-Based CAPTCHA

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Figure 12

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<p><em>Security and Communication Networks</em> provides a prestigious forum for the R&amp;D community in academia and industry working at the interdisciplinary nexus of next generation communications technologies for security implementations in all network layers.</p>


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