Your image is not very "linear" in the sense that a word document is and
which Tesseract by default does best with. You should try another page
segmentation. I tried -psm 6 and got

l

6

3

s

2

‘ 7

9 5

Note this is not 100% accurate so you might then try increasing the
resolution of your image.

New users make all the same mistakes - wrong PSM and wrong resolution -
this is mentioned in the Tesseract documentation.

https://github.com/tesseract-ocr/tesseract/wiki/ImproveQuality

On 19 August 2016 at 18:44, Jeremy Colton <[email protected]> wrote:

> Hi,
>
> i have the latest tesseract-ocr:
>
> tesseract 3.03
>  leptonica-1.70
>   libgif 4.1.6(?) : libjpeg 8d : libpng 1.2.50 : libtiff 4.0.3 : zlib
> 1.2.8 : webp 0.4.0
>
> I created an image in paint with pixels 12px and 20px numbers.  See
> attached.
>
> I ran tesseract a.png out digits
>
> And I get an empty out.txt file.
>
> This is the simplest test and it fails!  What simple config setup have I
> missed?
>
> Many thanks
> Jeremy
>
> --
> 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].
> To post to this group, send email to [email protected].
> Visit this group at https://groups.google.com/group/tesseract-ocr.
> To view this discussion on the web visit https://groups.google.com/d/
> msgid/tesseract-ocr/6b1a6ddf-c863-4a2e-b077-e7f76760f6cf%
> 40googlegroups.com
> <https://groups.google.com/d/msgid/tesseract-ocr/6b1a6ddf-c863-4a2e-b077-e7f76760f6cf%40googlegroups.com?utm_medium=email&utm_source=footer>
> .
> For more options, visit https://groups.google.com/d/optout.
>

-- 
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].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/tesseract-ocr.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/tesseract-ocr/CAORW5vgFi2qghBMZ1NTdiiPk6rPwmpAdALmk7uDm_ci1Uz2MDg%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to