what parameters can make the recognition faster ?

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mh cbon

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May 28, 2019, 3:32:46 PM5/28/19
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Hello,

I m inexperienced in OCR with tesseract.

i was thinking about writing a small application
that is able to recognize text over a video feed
taken from webcams (phone/laptop).

However i have tried online version (https://tesseract.projectnaptha.com/)
and its does not look fast enough for this specific usage.

I have read earlier that one of the factor of the speed is the size (px) of the input.

I wonder if there are more parameters that could change this behavior in a good way.

I had some ideas, but i m unsure that they are meaningful,
- use a specific trained model for one specific font, 
- a smaller alphabet,
- a smaller range of font sizes,

Could it help ? Are there other parameters i might investigate ?

I also wonder which has the most impact on the speed between recognition and preprocessing ?
As i want to read a video feed from webcam, i must assume preprocessing
will be required and i m afraid heavy.
However the example i have linked above does not seem to require much preprocessing.

thanks for your inputs.
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