Hi Quan. I've used tesseract to OCR frames from 640x480 screencast videos, generally it worked fine: http://ianozsvald.com/2010/05/17/extracting-keyword-text-from-screencasts-with-ocr/
What problems are you seeing when you try tesseract? Ian. On 30 August 2010 23:46, Quan Nguyen <[email protected]> wrote: > I understand the resolutions of screenshots are typically inadequate > for OCR, but besides rescaling to a higher resolution, say, 300 DPI, > what other preprocessing operations may be needed on the images to > yield optimal OCR results? > > Thanks. > > -- > You received this message because you are subscribed to the Google Groups > "tesseract-ocr" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/tesseract-ocr?hl=en. > > -- Ian Ozsvald (A.I. researcher, screencaster) [email protected] http://IanOzsvald.com http://MorConsulting.com/ http://blog.AICookbook.com/ http://TheScreencastingHandbook.com http://FivePoundApp.com/ http://twitter.com/IanOzsvald -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en.
