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

Search found 17 matches

by zbgns
17 Jul 2018, 00:21
Forum: HELP
Topic: Flattening a wrinkled page
Replies: 5
Views: 126

Re: Flattening a wrinkled page

This is my attempt. I used Scan Tailor Experimental and manual mode in ("curved lines") in "Geometric Distortions" section. More patient adjustments of the grid may provide a little bit better result. Maybe Abbyy FineReader and its "Straighten lines" function may do it better? I do not know. The bot...
by zbgns
08 Jul 2018, 16:49
Forum: HELP
Topic: Opening Scan Tailor in other programes
Replies: 2
Views: 127

Re: Opening Scan Tailor in other programes

If I understand it correctly, you need to extract graphics from pages including also text to perform some operations on these pictures with graphics only. Maybe you should think about Scan Tailor Advanced? When mixed output applied (letters to b&w and pictures in color mode) there is an option to sa...
by zbgns
06 Jul 2018, 19:04
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 82
Views: 8581

Re: Scan Tailor Advanced

A new update with new features, fixes and improvements has been released. Also if anyone wants to support the project or express thanks, please donate. I would like to express my thanks :D I really appreciate development of this great software and the new features I had chance to see earlier checki...
by zbgns
28 Jun 2018, 05:16
Forum: HELP
Topic: Converting PDF to ePub Calibre not working
Replies: 11
Views: 254

Re: Converting PDF to ePub Calibre not working

Newer versions of Acrobat Pro join lines into paragraphs and in general try to save layout of original documents (as I remember Acrobat 11 Pro does). So usually no additional converting of line brakes into spaces is necessary (apart of typical OCR errors). Why do you think that this is so hard to d...
by zbgns
28 Jun 2018, 04:52
Forum: HELP
Topic: Converting PDF to ePub Calibre not working
Replies: 11
Views: 254

Re: HELP this is much more difficult than I thought it should be

Well, I thank you for all of your advice. It kind of appears to be a hellava lot of work to create an epub because the text needs to be basically rebuilt, or rewritten into MS Word or some other word processor and then converted to an epub. You are fully right. There is a lot of work to convert pdf...
by zbgns
28 Jun 2018, 04:20
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 82
Views: 8581

Re: Scan Tailor Advanced

Have you done tests comparing Acrobat against ImageMagick or other open tools for pdf to jpg image render? There are some ImageMagick recipes here https://stackoverflow.com/questions/6605006/convert-pdf-to-image-with-high-resolution I tried various methods in the past. My first method was pdf2tiff ...
by zbgns
26 Jun 2018, 17:45
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 82
Views: 8581

Re: Scan Tailor Advanced

While on the topic of pdf to images: In my experience some pdf files unpack to images with negative black and white colors. To fix that run GraphicsMagick's convert command on the images with the command parameter -negate . I guess this happens in case of MRC compressed pdf files. https://en.wikipe...
by zbgns
26 Jun 2018, 07:01
Forum: HELP
Topic: Converting PDF to ePub Calibre not working
Replies: 11
Views: 254

Re: Converting PDF to ePub Calibre not working

And don't forget to convert most line breaks into spaces, so that you have free flowing text for the Epub. It is better to use another OCR which does not keep the line breaks as Acrobat does, if the ultimate goal is an EPUB. Newer versions of Acrobat Pro join lines into paragraphs and in general tr...
by zbgns
26 Jun 2018, 03:22
Forum: HELP
Topic: Converting PDF to ePub Calibre not working
Replies: 11
Views: 254

Re: Converting PDF to ePub Calibre not working

You may use Acrobat Pro to export the pdf to MS Word file (Save -> Export to -> Microsoft Word). Edit the output .docx (OCR errors corrections may be necessary it is also useful to use styles to indicate headings, chapters and so on). Afterwards this may be easely exported to epub format. BTW, Calli...
by zbgns
18 Jun 2018, 04:21
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 82
Views: 8581

Re: Scan Tailor Advanced

But there's one functionality I'd advise to exclude: moving the dewarping from the final to the third stage. At least there should be an ability to keep it in stage 3. The reason for this, is that the dewarping is often crashing, with many of my scanned books. When this happens in the 3rd stage, it...