Daniel Reetz, the founder of the DIY Book Scanner community, has recently started making videos of prototyping and shop tips. If you are tinkering with a book scanner (or any other project) in your home shop, these tips will come in handy. https://www.youtube.com/channel/UCn0gq8 ... g_8K1nfInQ

Select Content with dark areas between pages

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Evgeny
Posts: 5
Joined: 04 Mar 2014, 00:53

Select Content with dark areas between pages

Post by Evgeny » 24 Dec 2010, 10:10

I am scanning a book that was previously photocopied where two pages (a spread) was copied into one page. In the middle, the book was not flat against the copier, so dark spots appeared between the pages.

During the "Select Content" stage, Scan Tailor about 20% of the time thinks that these spots are part of the page. In the first image below, the content was determined incorrectly while in the second one ST was correct.

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Do you have any tips concerning scanner or ST settings that could help minimize errors of this sort?

Thanks.

Tulon
Posts: 687
Joined: 03 Oct 2009, 06:13
Number of books owned: 0
Location: London, UK
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Re: Select Content with dark areas between pages

Post by Tulon » 24 Dec 2010, 10:20

The only thing I can think about that would help, is pre-cropping your scans to avoid a white gap between the dark area and the image boundary.
Scan Tailor experimental doesn't output 96 DPI images. It's just what your software shows when DPI information is missing. Usually what you get is input DPI times the resolution enhancement factor.

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