Unable to scan numbers about ocrad.js

[antimatter15]

Have you tried to binarize the image first? I just opened it up in the mac photo viewer and blew up the contrast so that it was black and white and fed it in, getting a substantially better result:

 

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On Wed, Sep 17, 2014 at 5:22 AM, konycert [email protected]
wrote:

Dear antimatter15,
when scanning numbers, such as the following image
http://lancelotlam.com/numbertest/numbers.png
ocrad.js only detect
___ - ______'''r'

---

-_________
_ ___7 __' __o,__o,7o,
__'T-| _T__T__T_O,
. E _ _ _ _

• ----_

most of the numbers were scanned as _
i have found the following enums in common.cc
const char * const charset_name[charsets] =
{ "ascii", "iso-8859-9", "iso-8859-15" };
and
const F_entry F_table[] =
{
{ "none", Filter::none },
{ "letters", Filter::letters },
{ "letters_only", Filter::letters_only },
{ "numbers", Filter::numbers },
{ "numbers_only", Filter::numbers_only },
{ 0, Filter::none }
};
but how to apply that on javascript side?

Thanks and regards

Reply to this email directly or view it on GitHub:
#13

[antimatter15]

I've updated it to Ocrad 0.24 and built the javascript bindings for applying filters and other things. Look at examples/browser/numbers.html for how to restrict it to numeric recognition.