Re: ocrtext vs FuzzyOCR?
On Mon, 30 Oct 2006 07:19:44 -0800 Jeff Chan [EMAIL PROTECTED] wrote: Does anyone have any opinions on which of these is better: http://wiki.apache.org/spamassassin/CustomPlugins OCR scanner and image validator SA-plugin Checks for specific keywords in gif/jpg/png attachments, using gocr. This can be used to detect spam that puts all the real contect in an attached image, accompanied with random text and html (no URL's, etc). There are also various rules to validate attached images and detect forged content types or broken images. This plugin needs SpamAssassin 3.1.1 or later. The version 2.0 is able to defeat recent gif animations which use gif tricks to avoid OCR. Created by: Martin Blapp Contact: mb -at- imp -dot- ch License Type: BSD Status: active Available at: [WWW] http://antispam.imp.ch/patches/patch-ocrtext Note: Feedback and new sample images are welcome. Please test and send reports. Fuzzy OCR Plugin Derived from OcrPlugin (see above), but has many feature enhancements, including an approximate matching algorithm to compensate recognition errors and obfuscation, support for broken gifs, jpeg and png, dynamic scoring, automatic content-type independant format detection and many more. Created by: Christian Holler Contact: decoder_at_own-hero_dot_net License Type: Same as SpamAssassin Status: active Available at: FuzzyOcrPlugin Note: Feedback and new sample images are welcome. Please test and send reports. Jeff C. -- I'd like to see something on this myself. The segfault patch for Fuzzy OCR failed, so I stopped right there as I wasn't sure what to do next. James
Re: ocrtext vs FuzzyOCR?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James Lay wrote: On Mon, 30 Oct 2006 07:19:44 -0800 Jeff Chan [EMAIL PROTECTED] wrote: Does anyone have any opinions on which of these is better: http://wiki.apache.org/spamassassin/CustomPlugins OCR scanner and image validator SA-plugin Checks for specific keywords in gif/jpg/png attachments, using gocr. This can be used to detect spam that puts all the real contect in an attached image, accompanied with random text and html (no URL's, etc). There are also various rules to validate attached images and detect forged content types or broken images. This plugin needs SpamAssassin 3.1.1 or later. The version 2.0 is able to defeat recent gif animations which use gif tricks to avoid OCR. Created by: Martin Blapp Contact: mb -at- imp -dot- ch License Type: BSD Status: active Available at: [WWW] http://antispam.imp.ch/patches/patch-ocrtext Note: Feedback and new sample images are welcome. Please test and send reports. Fuzzy OCR Plugin Derived from OcrPlugin (see above), but has many feature enhancements, including an approximate matching algorithm to compensate recognition errors and obfuscation, support for broken gifs, jpeg and png, dynamic scoring, automatic content-type independant format detection and many more. Created by: Christian Holler Contact: decoder_at_own-hero_dot_net License Type: Same as SpamAssassin Status: active Available at: FuzzyOcrPlugin Note: Feedback and new sample images are welcome. Please test and send reports. Jeff C. -- I'd like to see something on this myself. The segfault patch for Fuzzy OCR failed, so I stopped right there as I wasn't sure what to do next. This is no patch for FuzzyOcr but for gocr. You will need it with every OCR plugin that uses gocr... It should work with version 0.40 Best regards, Chris James -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFRiU2JQIKXnJyDxURAhB4AJ4vDRdlck+1I0D0HSNu0AFikgn13QCffOyi 0Tq0HJJvW7lrUGUKEKwX/EE= =xWpz -END PGP SIGNATURE-
Re: ocrtext vs FuzzyOCR?
On Mon, 30 Oct 2006 17:15:51 +0100 decoder [EMAIL PROTECTED] wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James Lay wrote: Jeff C. -- I'd like to see something on this myself. The segfault patch for Fuzzy OCR failed, so I stopped right there as I wasn't sure what to do next. This is no patch for FuzzyOcr but for gocr. You will need it with every OCR plugin that uses gocr... It should work with version 0.40 Best regards, Chris James Interesting. Here's what I get patching gocr-0.41. Patched fine with 0.40 though. Guess this is just an FYI really patching file src/pgm2asc.c Hunk #1 FAILED at 1200. Hunk #2 succeeded at 1719 with fuzz 2 (offset 466 lines). 1 out of 2 hunks FAILED -- saving rejects to file src/pgm2asc.c.rej James
