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 dtic
Today, 06:42
Forum: Programs, Software releases, and more.
Topic: TwoCamControl - fast two camera chdkptp photos (Windows)
Replies: 82
Views: 20935

Re: TwoCamControl - fast two camera chdkptp photos (Windows)

FWIW I have used TwoCamControl with two cameras connected to a USB extension cable and then to an inexpensive noname USB hub (without external power supply) without any problem.

But hard to say if and why some USB hubs haven't worked in your setup. You might just have to try a few different ones.
by dtic
27 Jun 2018, 19:05
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 80
Views: 8336

Re: Scan Tailor Advanced

I guess this happens in case of MRC compressed pdf files. https://en.wikipedia.org/wiki/Mixed_raster_content Images with inverted colors (black background and white letters) obtained by unpacking images from pdfs are masks placed on top of color backgrounds. It is the most effective way to obtain c...
by dtic
26 Jun 2018, 14:13
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 80
Views: 8336

Re: Scan Tailor Advanced

By the way, as it comes to extracting images from pdf files, the best tool I know is pdfimages from the poppler set. I agree pdfimages in Poppler ( https://poppler.freedesktop.org/ ) is useful. Does anyone know of a Windows version of the latest stable release poppler-0.66.0 ? While on the topic of...
by dtic
12 Mar 2018, 15:25
Forum: Programs, Software releases, and more.
Topic: Libusb library disappear
Replies: 2
Views: 163

Re: Libusb library disappear

After instaling libusb everything was ok . I scan two books . Today I read error that there is no libusb0.dll. I instal it using Zadig again and everything is ok. During last two months the libusb drivers disapear two times from my latop. Hard to say what the cause is. I had the same problem last y...
by dtic
23 Feb 2018, 07:21
Forum: Programs, Software releases, and more.
Topic: TwoCamControl - fast two camera chdkptp photos (Windows)
Replies: 82
Views: 20935

Re: TwoCamControl - fast two camera chdkptp photos (Windows)

For anyone having trouble with non-english characters turning out wrong in the cmd windows:
- Use the latest version of TwoCamControl https://github.com/nod5/TwoCamControl
- If the problem persists follow this instruction https://github.com/nod5/TwoCamControl/issues/1
by dtic
11 Feb 2018, 18:25
Forum: Programs, Software releases, and more.
Topic: Twocamcontrol disconnecting my camera
Replies: 3
Views: 383

Re: Twocamcontrol disconnecting my camera

It does not happen when I use the program on my desktop Check that you have the same versions of chdkptp on your Laptop and PC. If not then copy over the version from the PC to the Laptop and retry. Doublecheck that you have LibUSB installed for both cameras on the Laptop. Windows can in some situa...
by dtic
26 Dec 2017, 11:10
Forum: Programs, Software releases, and more.
Topic: TwoCamControl - use github for feedback
Replies: 0
Views: 179

TwoCamControl - use github for feedback

A note to TwoCamControl users: I will for the time being only use https://github.com/nod5/TwoCamControl/issues for feedback/bugs/issues for TwoCamControl . So if you run into an issue and want a reply, post there.
by dtic
19 Nov 2017, 15:02
Forum: Programs, Software releases, and more.
Topic: Missing libusb0.dll
Replies: 2
Views: 359

Re: Missing libusb0.dll

Hi, yes you need Libusb installed for both cameras for chdkptp and TwoCamControl to work. See https://github.com/nod5/TwoCamControl#dependencies , which link to the instruction here http://chdk.wikia.com/wiki/PTP_Extension#LibUSB_Driver_for_Windows on how to use the free program Zadiq to install Lib...
by dtic
30 Oct 2017, 10:48
Forum: Scan Tailor
Topic: Scan Tailor Advanced
Replies: 80
Views: 8336

Re: Scan Tailor Advanced

Hi 4lex4, great to see new work being done on ScanTailor! I see on github issues that command line processing is not yet implemented but set in a milestone - looking forward to that feature! I still use the old Scan Tailor Enhanced because it supports command line mode and can accept pre-cropped (wi...