On 19 January 2012 11:19, Cristian Consonni kikkocristian@gmail.com wrote:
2012/1/15 Nikola Smolenski smolensk@eunet.rs:
Дана Wednesday 11 January 2012 18:19:14 Cristian Consonni написа: However, to my knowledge there is not a single OCR that exports this data, nor is there a standard format for it. If an open source OCR could be modified to do this, then it would be easy to inject data retreieved from captchas back into OCR-ed text. And it could be used for so much more :)
I know (but I am not proficient in their use) at least two open source OCR softwares:
- OCRopus[1a][1b], by the German Research Center for Artificial
Intelligence, sponsored by Google
- Tesseract[2a][2b], started by HP in far 1995, now Google-sponsored
(yeah, this one too!) [note: as far as I know OCRopus used tesserect as an engine for OCR]
- GOCR/JOCR
I think much can be done.
Cristian
More related tools, the documentcloud project.
Raw Engine => Tools http://documentcloud.github.com/docsplit/
Tools => Human Documents https://github.com/documentcloud/document-viewer
Human Documents => Beatiful viewers http://www.pbs.org/newshour/rundown/documents/mark-twain-concerning-the-inte... http://www.commercialappeal.com/withers-exposed/pages-from-foia-reveal-withe...
Using tesseract alone is "too much work". Tesseract want tiff files in a particular format, and DPI. Humans want stuff in a easy to use format, perhaps click on a image and get the text directly behind the mouse arrow as text can be copied and paste.