John Resig - OCR and Neural Nets in JavaScript
A pretty amazing piece of JavaScript dropped yesterday and it’s going to take a little bit to digest it all. It’s a GreaseMonkey script, written by ‘Shaun Friedle‘, that automatically solves captchas provided by the site Megaupload. There’s a demo online if you wish to give it a spin. Now, the captchas provided by the site aren’t very “hard†to solve (in fact, they’re downright bad – some examples
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CAPTCHAã‚’ã”å˜çŸ¥ã§ã—ょã†ã‹ã€‚ スパム防æ¢ã®ãŸã‚ã«æªã‚“ã æ–‡å—ã¨ã‹ã‚’入力ã•ã›ã‚‹ã€ã‚¢ãƒ¬ã®ã“ã¨ãªã®ã§ã™ãŒã€ ã¯ã¦ãªã®CAPTCHAã®å¼·åº¦ãŒå¦™ã«ä½Žãæ€ãˆãŸã®ã§æ¤œè¨¼ã—ã¦ã¿ã¾ã—ãŸã€‚ CAPTCHAã¨ã„ã†ã®ã¯ã„ã‚ゆる逆ãƒãƒ¥ãƒ¼ãƒªãƒ³ã‚°ãƒ†ã‚¹ãƒˆã¨ã„ã†å¥´ã§ã€ 人間ã«ã¯å¯èƒ½ã ãŒæ©Ÿæ¢°ã«ã¯å‡¦ç†ã—ã«ãã„ã“ã¨ã‚’ã•ã›ã‚‹ã“ã¨ã§ã€ ãƒãƒœãƒƒãƒˆã«ã‚ˆã‚‹æ“作を弾ã“ã†ã¨ã„ã†ã‚‚ã®ã§ã™ã€‚ ãŸã¨ãˆã°ã€Gmailã®ãƒ¦ãƒ¼ã‚¶ç™»éŒ²ã«ã¯ä»¥ä¸‹ã®ã‚ˆã†ãªç”»åƒãŒè¡¨ç¤ºã•ã‚Œã€ 表示ã•ã‚Œã¦ã„ã‚‹æ–‡å—を入力ã™ã‚‹ã“ã¨ãŒæ±‚ã‚られã¾ã™ã€‚ CAPTCHAã®å¼·åº¦ 例ãˆã°ã‚¹ãƒ‘ムをé€ã‚‹ãŸã‚ã«å¤§é‡ã®Gmailアカウントを得よã†ã¨ã—ã¦ã‚‹äººãŒã„ãŸã¨ã—ã¾ã™ã€‚ 手作æ¥ã§Gmailを登録ã™ã‚‹ã®ã¯éª¨ãŒæŠ˜ã‚Œã‚‹ã€‚ ãã“ã§ãƒ—ãƒã‚°ãƒ©ãƒ ã«ã‚ˆã‚‹æ©Ÿæ¢°åŒ–を試ã¿ã‚‹ã“ã¨ã«ãªã‚‹ã‚ã‘ã§ã™ã€‚ ãã®éš›ã€éšœå£ã¨ãªã‚‹ã®ãŒã“ã®CAPTCHAãªã®ã§ã™ã€‚ ã“ã®ç”»åƒã‹ã‚‰æ£è§£ã§ã‚ã‚‹æ–‡å—列"vittac"ã‚’å¾—ã‚‹ã“ã¨ã¯æ©Ÿæ¢°ã«ã¯é›£ã—ã„。 プãƒ
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