http://simonwillison.net/2009-01-25T00:00:28+00:00Simon Willison2009-01-25T00:00:28+00:002009-01-25T00:00:28+00:00https://simonwillison.net/2009/Jan/25/ocr/#atom-tag

<p><strong><a href="http://ejohn.org/blog/ocr-and-neural-nets-in-javascript/">OCR and Neural Nets in JavaScript</a></strong></p> John dissects the brilliant Greasemonkey script that solves simple captchas using the canvas element and HTML5’s getImageData API. <p>Tags: <a href="https://simonwillison.net/tags/canvas">canvas</a>, <a href="https://simonwillison.net/tags/captchas">captchas</a>, <a href="https://simonwillison.net/tags/getimagedata">getimagedata</a>, <a href="https://simonwillison.net/tags/greasemonkey">greasemonkey</a>, <a href="https://simonwillison.net/tags/javascript">javascript</a>, <a href="https://simonwillison.net/tags/john-resig">john-resig</a>, <a href="https://simonwillison.net/tags/ocr">ocr</a></p>