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Your image indicates simply pictures of pages. You are on the right track with OCR, but that is not part of Calibre, so you will have to do it independently. If you run Linux, I suggest the Tesseract OCR engine with OcrFeeder as a front end--it lets you do double columns very easily, and it's free.
If you do your own OCR, you will want to take the text into a word processor for formatting and proofing (there WILL be errors!), and from there you can convert to an ebook format.
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