Quote:
Originally Posted by roger64
After all, the only goal of this stage is to get a png image that can be later processed with scantailor.
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And have you been using Scan Tailor Advanced?
https://github.com/4lex4/scantailor-advanced/releases
It includes all the enhancements from all the different Scan Tailor forks over the years:
https://github.com/4lex4/scantailor-...ed#description
Quote:
Originally Posted by roger64
I did this kind of conversion with two different pdf scans from Gallica. The size of the output .png files varied widely from 26k (1st book) to a whopping 1.7mb (2d book)! As this difference can also be noticed using online conversion services, it can only be explained by the nature of the pdf.
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Yeah, it'll be completely different depending on the PDFs: What DPI they were originally scanned at, vector/bitmapped, color, markings, etc.
Like one of the
books I was working on (problem still not solved) had vertical lines slashed right through the middle (along with an incredibly low resolution scan).
Quote:
Originally Posted by roger64
Happily, this oversized files are only of temporary use because later the scantailor process outputs to standardized and much lower size .tif images.
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You could also output as PDF->TIFF straight from ImageMagick, but the workflow you're using seems fine. I also prefer outputting to PNGs.