Can I inject a binarized aligned image into Tesseract pipeline

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I'm trying to speed-optimize Tesseract for processing of a single image.

Text is perfectly aligned. It's a screenshot from a webpage.

I've already greyscaled / thresholded / binarized the image.

I've even isolated the text rectangle.

Can I throw this image into Tesseract and prevent it from doing these stages itself?

And if so, how?
I can't find any documentation on this. My apologies if it's somewhere obvious.

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