Hi Zdenko, I've tried to use the code you posted here for using leptonica, and that gives me an error saying something about min, max specificacion (Error: Illegal min or max specification! signal_termination_handler:Error:Signal_termination_handler called:Code 5002)
I've changed the OCR.SetRectangle and the same error displayed, I've tried also with another image and the same. El lunes, 9 de diciembre de 2013 22:02:13 UTC+1, zdenop escribió: > > > 1. Instead of function listing it is better to provide small test > case. It save time to testers... > 2. Skip not "relevant" code (e.g. if you are testing tesseract api, > open image with leptonica function and not with opencv...) > 3. You need to fix perspective of image first, so you have some border > around text. See I did it in gimp, but maybe you can do it in opencv > too... > > > > Zdenko > > > On Mon, Dec 9, 2013 at 1:15 PM, adrian company <[email protected]<javascript:> > > wrote: > >> Hi Nick, >> I've took a look at api/tesseractmain.cpp as you recommend me, but I >> cannot find anything wrong, I think. Anyway, I could post my program here >> and try to guess what is going on with your help. >> This is my method: >> ___________________________________________________________________ >> void recognizeChar(Mat imagen){ >> >> /*INITIALIZE (TESSERACT)*/ >> putenv("TESSDATA_PREFIX=/usr/local/share/"); >> setlocale(LC_NUMERIC, "C"); >> tesseract::TessBaseAPI OCR; >> >> if (OCR.Init(NULL, "spa")){ >> fprintf( stderr, "cannot could initialize tesseract.... \n" ); >> exit(1); >> } >> /*CONFIGURING*/ >> OCR.SetPageSegMode(tesseract::PSM_SINGLE_LINE); >> api.SetVariable("tessedit_char_whitelist", >> "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 ");//lista blanca >> api.SetVariable("tessedit_char_blacklist" , >> "<>abcdefghijklmnopqtrstuvwxyz./!¡$%&?¿,;+-#");//lista negra >> OCR.SetImage(imagen.data, imagen.size().width, imagen.size().height, >> imagen.channels(), imagen.step1()); >> OCR.TesseractRect(imagen.data, 0, imagen.step1(), 0, 0, imagen.cols, >> imagen.rows); >> >> /*GETTING READED TEXT*/ >> char* texto = OCR.GetUTF8Text(); >> string t1=texto; >> t1.erase( remove(t1.begin(), t1.end(), '\n'), t1.end() ); >> cout << "TEXTO: "<<t1.c_str() <<endl; >> } >> _______________________________________________________________________ >> Thank you all. >> >> El martes, 3 de diciembre de 2013 11:29:58 UTC+1, Nick White escribió: >> >>> Hi Adrian, >>> >>> Well then your C++ program must be wrong in some way. The command >>> line version doesn't do anything special, it just uses the API like >>> anything else. Take a look at api/tesseractmain.cpp to check how >>> your API usage differs, to find your bug. >>> >>> Nick >>> >>> On Tue, Dec 03, 2013 at 01:16:40AM -0800, adrian company wrote: >>> > Hi Sventech, >>> > I've tested the image with the command line version and I get the same >>> result >>> > as you. But when I use my own software in C++ I cannot obtain the same >>> result, >>> > simply get nothing. Currently I am using PSM_SINGLE_LINE, but I've >>> said before >>> > I've tried all the page seg modes. >>> > I don't know what is wrong. I've reinstalled tesseract and do the >>> same. >>> > >>> > >>> > El martes, 3 de diciembre de 2013 07:29:11 UTC+1, adrian company >>> escribió: >>> > >>> > And about the page seg I've tried with all the page seg but I >>> still get >>> > anything. >>> > >>> > El lunes, 2 de diciembre de 2013 16:13:17 UTC+1, sventech >>> escribió: >>> > >>> > I get >>> > V! 2\"03ENl >>> > so you could postprocess that kind of thing to get better >>> results -- >>> > you need to eliminate the black border for best results. You >>> may need >>> > to remove noise. What page seg mode are you using? Make sure >>> you test >>> > with the command line version before you try your own. Also, >>> I'm using >>> > the latest version 3.02.02 >>> > --Sven >>> > >>> > >>> > >>> > On Mon, Dec 2, 2013 at 6:18 AM, adrian company < >>> [email protected]> >>> > wrote: >>> > >>> > Hi again, I've tried to deskew the first image and pass it >>> to >>> > tesseract greater, but I have the same result, the numbers >>> and >>> > letters are not recognized by tesseract. I post an image >>> where you >>> > can see how is my image now. >>> > Any idea??? >>> > Thanks in advance again. >>> > >>> > >>> > >>> > >>> > >>> > El jueves, 31 de octubre de 2013 07:22:53 UTC+1, adrian >>> company >>> > escribió: >>> > >>> > Thanks Sventech, I'll try to deskew the first, i'm >>> using opencv >>> > to prepare the image so I cannot use any program to >>> prepare it. >>> > I've tried to rotate the image and pass it to >>> tesseract with >>> > text in horizontal but tesseract outputs the same. I >>> will also >>> > try to pass it to in png format and I will see the >>> result. >>> > >>> > >>> > On Wednesday, October 30, 2013 3:21:58 PM UTC+1, >>> sventech >>> > wrote: >>> > >>> > In the first image you need to deskew it. There >>> are free >>> > programs for preparing the image, The second image >>> appears >>> > to be too low resolution (or letter pixel height >>> to be >>> > precise). Approx. 200-300dpi is ideal for >>> tesseract's >>> > default training. Also, JPEG is not a good format >>> for text. >>> > Internally it will convert to TIFF or PNG. >>> > >>> > >>> > On Wed, Oct 30, 2013 at 6:50 AM, adrian company < >>> > [email protected]> wrote: >>> > >>> > Hi all, I am trying to write a software to >>> recognize >>> > some text from an image, but when I binarize >>> the image >>> > and I call to tesseract engine, this does not >>> recognize >>> > text in image. Does somebody know why text it >>> is not >>> > recognized? Must I do something extra to >>> recognize? >>> > I attach the image I am trying to recognize >>> text >>> > (license plate). In this attached image the >>> tesseract >>> > output is nothing. >>> > >>> > I've also tried to recognize text from another >>> image >>> > (Fuma) and in this case the output is: "L I". >>> > >>> > Could anybody help me? >>> > >>> > What could be happening? >>> > >>> > >>> > Thanks in advance. >>> > Adri >>> > >>> > >>> > >>> > >>> > -- >>> > -- >>> > 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. >>> > To unsubscribe from this group and stop >>> receiving >>> > emails from it, send an email to >>> > [email protected]. >>> > For more options, visit >>> https://groups.google.com/grou >>> > ps/opt_out. >>> > >>> > >>> > >>> > >>> > -- >>> > ``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. >>> > To unsubscribe from this group and stop receiving emails >>> from it, >>> > send an email to [email protected]. >>> > For more options, visit https://groups.google.com/ >>> groups/opt_out. >>> > >>> > >>> > >>> > >>> > -- >>> > ``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. >>> > To unsubscribe from this group and stop receiving emails from it, send >>> an email >>> > to [email protected]. >>> > For more options, visit https://groups.google.com/groups/opt_out. >>> >> -- >> -- >> 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]<javascript:> >> To unsubscribe from this group, send email to >> [email protected] <javascript:> >> 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. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. 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