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 29 matches

by 0kelvin
21 Jul 2019, 15:17
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 104
Views: 83198

Re: Scan Tailor Advanced

What happened to that version of scantailor that started multiple processes in task manager, one per thread to process multiple pages at once? I'm using the newest one and it processes one page at a time.
by 0kelvin
17 Jul 2019, 20:18
Forum: Programs, Software releases, and more.
Topic: djvu 1bit vs 8bits
Replies: 6
Views: 2679

Re: djvu 1bit vs 8bits

Maybe a single page compressed differently? I compressed a whole book and the same issue didn't happen.

I think it was a false alarm. When I view the djvu at 100% zoom the quality is higher than "fit width to the screen". Fit width seems to blurry the edges of everything.
by 0kelvin
17 Jul 2019, 14:20
Forum: Programs, Software releases, and more.
Topic: djvu 1bit vs 8bits
Replies: 6
Views: 2679

Re: djvu 1bit vs 8bits

PDF in Abbyy. djvu with djvu small mod.
by 0kelvin
16 Jul 2019, 15:31
Forum: Programs, Software releases, and more.
Topic: djvu 1bit vs 8bits
Replies: 6
Views: 2679

djvu 1bit vs 8bits

Just noticed something: A single text page, with grayscale or 1bit, results in the same PDF with mixed raster content. Maybe some bytes of difference, but they look the same. However, with djvu the result is different. Grayscale results in a somewhat bold text and 3,5x times increased filesize. It s...
by 0kelvin
26 Jun 2018, 17:42
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 104
Views: 83198

Re: Scan Tailor Advanced

Can scantailor detect corrupted files? My HDD is corrupting images at wild. When a project happens to have one image file corrupted, scantailor overloads the HDD to the point that windows almost completely freezes. I can't even load task manager to terminate scantailor because it takes like 10 minut...
by 0kelvin
01 May 2018, 10:50
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 104
Views: 83198

Re: Scan Tailor Advanced

Noticed that blank pages causes scantailor to crash when exporting pages, if there is no content box.
by 0kelvin
01 May 2018, 10:41
Forum: Scan Tailor
Topic: Two very similar pages, two very different results
Replies: 11
Views: 8217

Re: Two very similar pages, two very different results

Changing the settings doesn't help. However, if I go in image editing program and erase the gray background by hand, then ST doesn't "get confused" by the background.

STA 1.0.12. Different hardware doesn't affect the processing, does it?
by 0kelvin
25 Apr 2018, 10:36
Forum: Scan Tailor
Topic: Two very similar pages, two very different results
Replies: 11
Views: 8217

Re: Two very similar pages, two very different results

https://postimg.cc/image/cj0psw4u1/ Here is the original scanned page.

The other images are printscreen from scantailor itself (latest advanced version)

In the whole book thre are about 5 pages that happen to produce that black thing, all others are OK.
by 0kelvin
24 Apr 2018, 11:49
Forum: Scan Tailor
Topic: Two very similar pages, two very different results
Replies: 11
Views: 8217

Two very similar pages, two very different results

this page

Image

yields this result

Image

but this page

Image

yields this black thing

Image
by 0kelvin
13 Jul 2016, 18:25
Forum: Scan Tailor
Topic: Scan Tailor "Experimental"
Replies: 275
Views: 147683

Re: Scan Tailor "Experimental"

Why does scantailor erase shaded areas? I'm scanning many math and physics books. There are lots of pages with shaded graphs or figures such as triangles, circles, etc. The shaded area is shaded with black dots with a pattern to make it gradually darker or lighter. Scantailor always tries to clean s...