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 Heelgrasper
22 Mar 2012, 17:21
Forum: Cameras and Electronics
Topic: Has anyone tried capturing stills from video?
Replies: 1
Views: 1846

Re: Has anyone tried capturing stills from video?

As far as I can see, the camera in question has a max resolution of 480x640 pixels (0.3 Megapixel). If we imagne you're scanning a rather small book, each page being 5 inches tall you would at best get 128 DPI and in reality closer to 100 DPI. Usually OCR on anything less than 200 DPI is a waste of ...
by Heelgrasper
21 Mar 2012, 11:11
Forum: Programs, Software releases, and more.
Topic: NSW Govt to open source digital archives software
Replies: 1
Views: 1880

Re: NSW Govt to open source digital archives software

NSW = New South Wales

Since not at single line of code have been writen so far it's no wonder that there's no link for it.
by Heelgrasper
13 Mar 2012, 06:28
Forum: Show and Tell / Book Projects
Topic: Training, by W. G. George, 1902
Replies: 23
Views: 19115

Re: Training, by W. G. George, 1902

You might find this tutorial to ScanTailor helpful if you don't know it already: http://vimeo.com/12524529
by Heelgrasper
09 Mar 2012, 13:19
Forum: Scanners and Build Threads
Topic: Over Engineered - just how strong?
Replies: 3
Views: 2302

Re: Over Engineered - just how strong?

Finally, what are the advantages of either fixed platen moveable cradle or moveable platen fixed cradle? Is there a trend in designs, or doesn't it really matter? Others are more qualified for answering your questions but as I see it the fixed platen has the advantage that the cameras will see the ...
by Heelgrasper
08 Mar 2012, 23:50
Forum: Scanners and Build Threads
Topic: Seebach's build blog
Replies: 8
Views: 5134

Re: Seebach's build blog

Those halogen work lights usually comes with a warning to keep them at least 3 feet from the illuminated object. It's way overkill and the light type isn't that good for book scanning as pointed out on several occassions around here. When it comes to light temperature I wouldn't care much since you ...
by Heelgrasper
06 Mar 2012, 22:36
Forum: Cameras and Electronics
Topic: Going oldschool?
Replies: 1
Views: 2005

Re: Going oldschool?

Okay, seems pretty simple to maken a DIY adapter for the cable release: http://youtu.be/_EqhFvDyO08.

Looking a bit more into it, both a mechanical shutter cable and a brake cable for a bike are Bowden cables. Makes me think a relatively simple DIY build should be possible.
by Heelgrasper
05 Mar 2012, 23:44
Forum: Lighting
Topic: Lighting from an angle
Replies: 2
Views: 4971

Re: Lighting from an angle

In http://diybookscanner.org/forum/viewtop ... =17&t=1149 in the last of the videos in Daniels original post there's some good observations about where to put the light. It was extremly helpful for me to understand the optimal setup.
by Heelgrasper
05 Mar 2012, 23:20
Forum: Cameras and Electronics
Topic: Going oldschool?
Replies: 1
Views: 2005

Going oldschool?

A random thought popped into my head while surfing around for something unrelated. It might have been discussed earlier but then I have missed it. In the old days a cable shutter release was pure mechanical. Like this: http://www.ebay.com/itm/40-100cm-Mechanical-Camera-Cable-Cord-Remote-Shutter-Rele...
by Heelgrasper
05 Mar 2012, 16:53
Forum: Scanners and Build Threads
Topic: Museum glass: before and after shots
Replies: 12
Views: 8769

Re: Museum glass: before and after shots

Great test.

Would be really useful with a comprehensive test of different types of glass since there's quite a few to choose from. And it's something where spending a little extra could make things a lot better but only tests can show exactly how much a difference there is.
by Heelgrasper
02 Mar 2012, 13:45
Forum: Scan Tailor
Topic: light washes out text AND noise in photoshop not in ST
Replies: 33
Views: 15369

Re: light washes out text AND noise in photoshop not in ST

dpc wrote:Then put another black sheet under the page you're scanning to eliminate the bleed through.
That isn't going to eliminate the bleed through since that comes from the print on the other side of the same sheet.