Hi Shree,

Thanks for sending these images and the traineddata file.  I confirmed that 
they worked.  Would you please tell me a little bit more about what kind of 
image processing you used to make the .png images and how you created your 
traineddata file using fine-tuning?

Thank you,
Ameera

On Friday, March 22, 2019 at 12:11:11 AM UTC-7, [email protected] wrote:
>
> I am trying to fine-tune Tesseract for dot-matrix fonts such as that in 
> the picture below.  When the dots are closely spaced together and touch, 
> Tesseract can more or less handle the dot-matrix font with some fine-tuning 
> and image processing.  However, when the dots do not touch, as in the 
> picture below, Tesseract struggles.
>
>
> I read in An Overview of the Tesseract OCR Engine 
> <https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/33418.pdf>
>  that 
> the first step in Tesseract's processing pipeline is a connected component 
> analysis (second paragraph of Section 2).  Since the letters in a 
> dot-matrix font do not form connected components, I am wondering if 
> Tesseract's connected component analysis may be one reason that Tesseract 
> struggles on the image below.  
>
>
> Is there a command to see how Tesseract performs connected component 
> analysis on this image?  
>
>
> [image: ex_20.jpg]
>
>
>

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