1. try the latest version
2. try play with psm: e.g. tesseract 20201002.png - --psm 11 --dpi 300
produces:
8 27 26 10 04 03 01
N29 19 16 14 09 03
131 27 25 18 12 03
N21 18 16 13 07 04
N32 232112 10 07
N 36 34 30 27 21 01
X35 3417 13 10 08
N36 33 29 28 14 09
R 33 32 31 21 06 01
- oe ————
—— — ——— —— a = —
R 37 27 19 09 05 03
-———
Fra anny
156136
-——
3198(19): ‘on iam mn
10:52:25 28.11.19 1 09
.. . custom image segmentation would help too (and then to OCR each "cell"
individually)
Zdenko
so 3. 10. 2020 o 7:06 H Brenner <hyltonbren...@gmail.com> napísal(a):
> Hi,
>
> I have tesseract 3.02 on a Windows 10 PC.
>
> I am trying to recognise text on a form scanned with a camera that has
> numbers mostly in tabular form with a small amount of Hebrew characters
> plus one English "graphical" word. I processed the photo to remove a pink
> background pattern, and to enhance the text in the image (the original -
> minus the pink pattern - produced the same results)
>
> [image: 3198Rfat.png]
>
> The Hebrew text on the bottom 2 lines is cut off on the right, but this
> does not matter to me.
>
> Only the numbers are of interest to me in the output.
>
> I am running tesseract in Python using the pytesseract wrapper, and I am
> running the following command:
>
> - Imaj=Image.open(ImgPath) # ImgPath is the full path to the .png
> file.
> - print('\n\n','v'*20,'\n',
> pytesseract.image_to_string(Imaj),'\n','^'*20,'\n\n') # use eng default
>
> I believe this corresponds to the command-line:
>
> - tesseract ImgPath out (I used the actual path)
>
> The output that I get is the following:
>
> - 7547512723 2
> -
> - 1334718913
> - 0000000000
> - 3927010465.
> - 4483273819..
> - 0.|..1|.|.1ln/_1|.7_n/.01
> - 0556107919..
> - 1|11n/Tln/_nJ110._O...|__
> - 6978344327..
> - n/..|9._..l9._Q.:1Jn.o3n/___
> - _/0._1|.|9._n0EunD3./:
> - n/L232333333““
> -
> - A —:1 qnnwn N
> -
> - 156138
> -
> - ::§1§§?13:?76fi-fi333ii‘ifi1
> - 10:52:25 29.11.19 :1 ma‘
>
> Most of it is meaningless gibberish to me. Only the highlighted text is
> recognised correctly/
>
> When I ran it with the Hebrew language selected, it produced similar
> results, but with *some *of the Hebrew characters and only the "156138"
> recognised correctly.
>
> Running tesseract manually (English) in a 'CMD' window produced the
> attached file 'out.txt'.
>
> I suspect that the font used in the form is the problem - the form was not
> printed on a normal Windows, Mac or linux computer.
>
> Which fonts were used to create heb.traineddata? Is there a way for me to
> display them?
>
> Do I have to train tesseract with the font in the form?
>
> Any help will be appreciated!
>
> Thanks!
>
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