On Tuesday, 12 May 2015 04:31:24 UTC+2, smwikipedia smwikipedia wrote:
>
> I am trying to use Tesseract to do OCR for some screenshots.
>

I guess you will need to pre-proced/improve quality of  images (see Wiki or 
VietOCR has screenshot mode)


> But the characters on screen can be of multiple fonts.
>
This should not be problem. But image examples would help better words ;-)


> I see that in the latest 3.03 version, the training tool `text2image` can 
> easily generate training tif/box pair from training text and font files.
>
Why  do you think you need to do training? Common experience is that image 
pre-processing is needed more that training. For some font (e.g. 7 
segments) /cases it can be better to use other tools...

>
> If I want to support multiple fonts, do I need to make multiple 
> *.traineddata files and switch between them at runtime?
>
no.
 

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