Hi, I am still facing an issue where the number 8 is not detected, Here is a way to reproduce the problem using binaries downloaded from the tesseract site. I downloaded the tesseract portable (http://code.google.com/p/tesseract-ocr/downloads/detail?name=tesseract-ocr-3.02-win32-portable.zip&can=2&q=) and ran following command line with the attached image to this post. tesseract.exe -l eng -psm 8 OCR_MONO_DEBUG.jpg test in test.txt i get following string "/" I would expect "8", I would really appreciate it a lot if anyone can verify this behaviour on their side.
Thanks in advance, Mike On Thursday, September 13, 2012 12:19:13 PM UTC+2, Mike wrote: > > Hi, > > Thanks for the info. I am using revision 700, now I tried what "sventech" > explained and it improved my results. I will integrate the latest revision > and see if it then even gets better. > > On Wednesday, September 12, 2012 11:09:29 PM UTC+2, Stane wrote: >> >> Does the example images work with your code? >> >> If us the tesseract 3.02 api to detect your image(white 8 on black >> ground), it get recognized without problems >> Iam using the default PageSegMode and OEM_TESSERACT_ONLY. >> Hope that helps somehow. >> >> On Monday, September 3, 2012 11:06:41 AM UTC+2, Mike wrote: >>> >>> Hi, >>> >>> maybe someone can point me into the right direction. >>> I use Windows 7 32 bit. >>> When taking the attached image and loading it with tesseract.exe (3.01) >>> via following command: tesseract.exe OCR_MONO_DEBUG.jpg test -l eng -psm 8 >>> The result is correct. >>> However I use the following functions (where image is the attached file >>> read internally by my program converted to 1 byte mono): >>> >>> pTessBase->SetPageSegMode(tesseract::PSM_SINGLE_WORD); >>> pTessBase->SetImage(pImage, width, height, 1, width); >>> char* ocr_result = pTessBase->GetUTF8Text(); >>> >>> Then oddly enough I do not get any results, all I get is an empty >>> string. Setting whitelist to only numbers does not help either. When I have >>> 2 numbers to recognize such as 81 then all works fine. >>> >>> Thanks in advance. >>> Mike >>> >> -- 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
<<attachment: OCR_MONO_DEBUG.jpg>>
