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

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by eL_PuSHeR
09 Oct 2011, 03:12
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

@dingodog: The sample you posted is the same output I get from Scan Tailor's BW output. That's not what I want. What I want is to preserve all original pixels in the bitmap which is already 2bpp (stucki dithering). Scan Tailor's method seems okay for b/w text but it's not suitable for b/w gradients/...
by eL_PuSHeR
08 Oct 2011, 17:43
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

Here is a sample I have just scanned.

600dpi - 2bpp

http://imageshack.us/photo/my-images/37/sampleqj.png/
by eL_PuSHeR
07 Oct 2011, 10:49
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

I have made several tests more. I have found out that the way ST treats 2bpp source images defeates most of the reason about using 600dpi line-art mode. I don't know why ST cannot work with pure b/w 2bpp images but after processing some pages I get heavy artifacting no matter what output mode I use....
by eL_PuSHeR
07 Oct 2011, 02:25
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

Thanks. It seems interesting for scanning text only using line art mode (600dpi-2bpp).
by eL_PuSHeR
06 Oct 2011, 15:53
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

Interesting. And how Scan Tailor decides which parts of a bitmap is text and which parts aren't?

Thank you very much for your replies all of you, honest.
by eL_PuSHeR
06 Oct 2011, 09:07
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

Tried mixed mode today but I don't understand what it does. A new button appears telling something about shape (free, rectangular). I tested it on a page (free) and it looked normal. What's the difference between mixed mode and grayscale mode for instance?
by eL_PuSHeR
05 Oct 2011, 15:49
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

In the interim I have made a 4bpp version that will suffice for now. Thank you very much for your replies. Still waiting Tulon's opinion.
by eL_PuSHeR
05 Oct 2011, 09:17
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

Forgive me but I do not see what your point is. My issue is with Scan Tailor's BW output.
by eL_PuSHeR
05 Oct 2011, 09:05
Forum: Scan Tailor
Topic: White margins - when white = light cyan
Replies: 1
Views: 7665

White margins - when white = light cyan

Hello. I have another problem. Sometimes, when I process true-colour source images under ST, the output margins become cyan instead of white (I have double-checked that the white margins option is applied to all pages). Here is an example image. I get a cyan line at the top margin. Maybe you can't r...
by eL_PuSHeR
05 Oct 2011, 08:53
Forum: Scan Tailor
Topic: B/W source - how to keep format?
Replies: 29
Views: 26155

Re: B/W source - how to keep format?

What? That page isn't even processed and has bad dpi.