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
14 Oct 2018, 12:40
Forum: Programs, Software releases, and more.
Topic: BookGapCheck: Quickly check if there are gaps or duplicates in a set of book page scan images
Replies: 9
Views: 3905

Re: BookGapCheck: Quickly check if there are gaps or duplicates in a set of book page scan images

Thanks for posting. It's an interesting tool and could be quite helpful. I first heard about this technique in the video describing the Google linear traveling book scanner in 2012 and thought it could be handy ( Google open sources a DIY page scanner ). The section of the original YouTube video de...
by dtic
30 Aug 2018, 12:14
Forum: Programs, Software releases, and more.
Topic: TTC Error: Could not start the cameras - month before work fine ?
Replies: 2
Views: 3737

Re: TTC Error: Could not start the cameras - month before work fine ?

My best guess is that Windows update may in some unknown situations remove the LibUSB driver.

If that happens first try to only reinstall LibUSB for the camera(s). That solved it for me last time I had that kind of problem.
by dtic
30 Aug 2018, 12:08
Forum: Programs, Software releases, and more.
Topic: TwoCamControl - fast two camera chdkptp photos (Windows)
Replies: 100
Views: 124650

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

TwoCamControl version 2018-08-30 released https://github.com/nod5/TwoCamControl Changes https://github.com/nod5/TwoCamControl/blob/master/CHANGELOG.md Download here https://github.com/nod5/TwoCamControl/releases Note: this release makes several changes to the zoom commands and other parts of TwoCam...
by dtic
29 Aug 2018, 17:21
Forum: Cameras and Electronics
Topic: Dire camera situation 2017
Replies: 23
Views: 18281

Re: Dire camera situation 2017

duerig wrote:
29 Aug 2018, 11:35
ELPH 180 cameras are now supported by CHDK.
Nice! I see from this chdk forum post that it also has filewrite/remoteshoot support. Which means it should work with chdkptp. Which means it should also work with TwoCamControl.
by dtic
17 Jul 2018, 06:42
Forum: Programs, Software releases, and more.
Topic: TwoCamControl - fast two camera chdkptp photos (Windows)
Replies: 100
Views: 124650

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: 103
Views: 61100

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: 103
Views: 61100

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...