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 10 matches

by rolling29
03 Dec 2015, 23:32
Forum: Scanners and Build Threads
Topic: my sheet metal, weld-less, archivist derivitave
Replies: 2
Views: 6858

my sheet metal, weld-less, archivist derivitave

Ok, I'll start by saying that I'm not done yet. I've enjoyed reading many, many build threads here and one thing I enjoy most is an unfolding story. Here's my go at being a good story teller... My history of book scanning, in summary, is hand-held camera/cell phone -> cardboard box cradle -> then wi...
by rolling29
09 Nov 2015, 22:13
Forum: Cameras and Electronics
Topic: Canon A2600 vs Ixus / ELPH 160?
Replies: 6
Views: 5781

Re: Canon A2600 vs Ixus / ELPH 160?

Did you have the light in 45 degree and try different typs of light? No, I wish we had some light sources available at the time and place, but the best we could do was keep it uniform between shots. It was daylight coming in from a north-facing window and the target was about perpendicular to it. I...
by rolling29
07 Nov 2015, 21:09
Forum: Cameras and Electronics
Topic: Canon A2600 vs Ixus / ELPH 160?
Replies: 6
Views: 5781

Re: Canon A2600 vs Ixus / ELPH 160?

I recently got the ELPH 160 when it was on sale for $99 and have been testing / playing with it for about a week. Because of that single instance of a reported brick, they have removed public links to the CHDK build. If you join up and ask for it they seem very willing to send links to people that a...
by rolling29
27 Oct 2015, 01:57
Forum: Lighting
Topic: Can the lights be too bright?
Replies: 21
Views: 16234

Re: Can the lights be too bright?

Footsie Platen Lighting I need to decide if more work is needed on my lighting system, since there are other aspects of the design that need attention. ... Malcolm Looks like the "-auto-level" doesn't like it when the scan area isn't all white / needs cropping. The minimum level is already quite da...
by rolling29
27 Oct 2015, 00:07
Forum: Lighting
Topic: Can the lights be too bright?
Replies: 21
Views: 16234

Re: Can the lights be too bright?

So here goes my attempt at quantifying and correcting lighting... Still using the Daylight1A.JPG source file for testing, let's assume it's a plain white paper test image taken by whatever camera and lighting you have available. (I think it was, outdoors?) This command will convert that file into a ...
by rolling29
24 Oct 2015, 00:55
Forum: Lighting
Topic: Can the lights be too bright?
Replies: 21
Views: 16234

Re: Can the lights be too bright?

Ok, I just checked up on imageMagick and I feel pretty dumb. A lot has changed since I last used it... (using wmalcomk's daylight test image) Daylight1A.JPG All you need for re-scaled visual feed back is this: convert Daylight1A.JPG -colorspace Gray -auto-level out-autolevel-1shot.jpg out-autolevel-...
by rolling29
24 Oct 2015, 00:10
Forum: Lighting
Topic: Can the lights be too bright?
Replies: 21
Views: 16234

Re: Can the lights be too bright?

Yes! I very much enjoyed reading this thread. (Sorry that I just found it and it is already several months old...) Some memories from my past: 1. yes, in general the more narrow the histogram the better 2. re-scaling the width from [whatever range you get] to 0-255 is the best way to emphasize the (...
by rolling29
20 Oct 2015, 01:22
Forum: Scanners and Build Threads
Topic: Best non-DIY book scanners
Replies: 44
Views: 45332

Re: Best non-DIY book scanners

Two things I can say about that. First that 3-4k usually includes one or more software packages (an ILL or kiosk system) and a minimum of 1 year of service. Institutions generally won't buy something without getting install/repair service and support pre-budgeted. As I understood it getting budget m...
by rolling29
19 Oct 2015, 01:05
Forum: Introductions and connections
Topic: Post something about yourself here (The Hello Thread)
Replies: 437
Views: 389293

Re: Post something about yourself here (The Hello Thread)

Hi all, First of all I wanted to thank so many of you for sharing so much information, experience, pictures, tips on fixing or avoiding troubles... It really makes this hobby a possibility for me. It would be a very daunting challenge to start from nothing and figure out how to turn a real book into...
by rolling29
18 Oct 2015, 12:59
Forum: Scanners and Build Threads
Topic: Best non-DIY book scanners
Replies: 44
Views: 45332

Re: Best non-DIY book scanners

I am also a n00b in many ways, but having worked in the past for one of the major scanner companies I thought I might have something worth contributing. Please understand that I'm on this board for my hobby so please don't try and figure out which scanner company and "out" me for my past employment....