You could try finetuning for the dotmatrix font.

On Fri, Jul 6, 2018 at 3:43 PM Wenjie Chen <[email protected]> wrote:

> Hi folks,
>
> Below is the dot-matrix digits picture, *tesseract *recognize it
> uncorrect without any pre-processing.
>
> <https://lh3.googleusercontent.com/--ZBp-CYUb-w/Wz83pH7m5EI/AAAAAAAAAM4/Fg7-ifOjI2on2QF0tdgbO_x0AXCpHHF_ACLcBGAs/s1600/100percent.png>
>
> I did erode processing via opencv, the digit 1 recognize correct, but the
> digit 0 still failed.
>
> <https://lh3.googleusercontent.com/-aPaYBOr_yCQ/Wz87jcfxHGI/AAAAAAAAANE/1DFW0xaRAfo5CQZ6rabiTT982yAyb3BXQCLcBGAs/s1600/100percent-erode.png>
>
> for the special font 0, do you have any suggestion how to make *tesseract
> *know it is the digit 0?
>
> Should I apply more image processing to the image, or should I training
> the *tesseract *for the special 0?
>
>
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