"resultiterator.*" files located in the "api" directory started to appear since revision 526. Indeed, in version 3.0.0 the API was different, but I can't see any reason to stick to that older version, especially when you are just starting your exploration of the project...
Warm regards, Dmitri Silaev www.CustomOCR.com On Sat, Aug 27, 2011 at 1:02 AM, Beto <[email protected]> wrote: > Hi folks, > I have a similar problem. > I need to extract character confidence, but I'm not finding a way. > I read all posts (or at least the ones I found) about the subject here > in this forum. I tried everything without success. > I'm using tesseract-3.0.0 > > 1 - My first approach was based on the post re-posted by Sven, > http://www.google.com/url?sa=D&q=http://groups.google.com/group/tesseract-ocr/search%3Fgroup%3Dtesseract-ocr%26q%3Dcharacter-level%2Bconfidence%26qt_g%3DSearch%2Bthis%2Bgroup > I did not found anything as a ResultIterator. > And even setting the variable, I still get the confidence of the word > and not of each character. > > 2 - After that, I tried to use a code based on the dotnet wrapper: > http://tesseractdotnet.googlecode.com/svn/trunk/dotnetwrapper/TesseractEngineWrapper/tesseractenginewrapper.cpp > Although the Apply function works fine, when I tried to work with the > RetrieveResultDetails() to get the character confidences from the > Character class, I never got a head->count more than 0. > The strategy here was to use the Monitor to get those values. Use > SetMonitor and the Recognize function using the monitor, but it did > not work. > > 3 - My last shot was to separate the characters, first separating the > characteres in idividual files and processing the OCR. But even with > PSM_CHAR I just got empty_page results. The second option was to just > put them far apart from each other in the same image, but the same > thing happened, empty_page (using PSM_AUTO or PSM_CHAR). It just > worked if some of them are together. > > The pattern of my character is as follow: > > B 3823482 41 > > I can have only 3 distinct word confidences. > > What else could I try? Anybody ever was able to get the character > confidence successfully ? > Please, I really need it. > > Thanks in advance. > > BR > > Beto > > On Aug 23, 8:56 pm, _Filipe <[email protected]> wrote: >> Hi Sven, >> I took a look at the link, but doing a deeper search in the forums I >> found a discussion about the function extract_result in api/ >> tessbaseapi.cpp. >> I'm trying to use it. >> My problem now is to access the data inside the object TESS_CHAR_IT, >> passed as an argument to this function. >> I searched the code and I was not able to find any reference to >> extract the results from it. >> Where is it declared?? >> How to get the TESS_CHAR objects inside it? >> Thanks again in advance. >> >> Best Regards >> >> On Aug 18, 2:05 am, Sven Pedersen <[email protected]> wrote: >> >> >> >> >> >> >> >> > Hi Filipe, >> > Please search the archives -- micke and Dmitri Silaev had a >> > conversation about this in >> > April.http://groups.google.com/group/tesseract-ocr/search?group=tesseract-o... >> >> > --Sven >> >> > On Wed, Aug 17, 2011 at 2:17 PM, _Filipe <[email protected]> wrote: >> > > Hello guys! >> >> > > I got a really tough work in text recognition area and I'm using >> > > Tesserct-ocr as my OCR tool. >> > > The problem consist in recognize IDs printed on steel slabs and >> > > identify them. >> > > Using only Tesseract I recognize no text. So a detection and >> > > segmentation phase is necessary. >> > > With that segmentation and after training the tesseract with our >> > > dictionary, the recognition rate is about 60%. >> >> > > We find a way to increase it in a probabilistic way, that would change >> > > characters, fixing common errors. >> > > To accomplish that we will need the confidence returned by the ocr >> > > tool in a character base way. >> > > I saw in code the function which returns it from a word. >> > > How could I get it for a character, is it possible with the current >> > > API? >> > > if not, is there a way to change the tesseract code to get that? Where >> > > should I start from? >> >> > > Thanks in advance. >> >> > > Best Regards >> >> > > Filipe >> >> > > -- >> > > 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 >> >> > -- >> > ``All that is gold does not glitter, >> > not all those who wander are lost; >> > the old that is strong does not wither, >> > deep roots are not reached by the frost. >> > From the ashes a fire shall be woken, >> > a light from the shadows shall spring; >> > renewed shall be blade that was broken, >> > the crownless again shall be king.” > > -- > 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 > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. 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