thank you Sven,
OCR-A is very different from OCR-B. but now I can read the posts of  Martin
Pierre about OCR-B ( but not all the file he is talking about)
I try to contact him directly

Thank you very much Sven

Franco

2012/5/9 Sven Pedersen <[email protected]>

> http://groups.google.com/group/tesseract-ocr?pli=1
>
> Someone named Hunter posted about a year ago with a zip file of E13B
> MICR font training data, and someone else posted about the OCR-A font.
> Martin Pierre posted about OCR-B but I don't see the solution...
> --Sven
>
>
> On Wed, May 9, 2012 at 9:31 AM, Franco Giustetto <[email protected]>
> wrote:
> > thank you Sven,
> > I was searching for that, because I suppose (tell me if i'm wrong) that
> > using specialized training for a single point should improve speed and
> > accuracy.
> > 'cause I'm new in both tesseract and google groups maybe I've performed a
> > wrong search, where I can find the archive you are talking about?
> > franco
> >
> >
> >
> > 2012/5/9 Sven Pedersen <[email protected]>
> >>
> >> Someone has done training for the OCR-B font -- are you using that
> >> training data?
> >> Search the archives and you'll find the files to download.
> >> --Sven
> >>
> >> On Wed, May 9, 2012 at 3:21 AM, [email protected] <[email protected]>
> >> wrote:
> >> > Hello,
> >> > I 'm trying to build up a program to read payment slip. The slip
> >> > contain a single OCR-B line on the bottom. That line is a record
> >> > containing some coded information. It is divided in four blocks
> >> > ( fields)  but only three of them are delimited by special character
> >> > separator and contains a modulo10 control character.
> >> > In my first try I simply pass a Grayscale cropped image to Tesseract
> >> > and set in initilization 0123456789>+ as set of allowed char.
> >> > This gave me 70% of accuracy.
> >> > I know that for numbers I cannot apply a dictionary (that can boost
> >> > accuracy to near 99%) but for payments, 70 % of accuracy is not an
> >> > acceptable result.
> >> > Does anybody know how could I improve accuracy?
> >> >
> >> > thank you very much in advance
> >> > Franco
> >> >
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