Simon Willison’s Weblog

Items tagged johnresig, captcha, getimagedata in 2009

Filters: Year: 2009 × johnresig × captcha × getimagedata ×


OCR and Neural Nets in JavaScript. John dissects the brilliant Greasemonkey script that solves simple captchas using the canvas element and HTML5’s getImageData API. # 25th January 2009, 12 am

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