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 14 matches

by JThomas
26 May 2012, 19:24
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 27666

Re: A Scanner for books with text VERY close to the gutter.

smartechs wrote:Thanks for the details.
No problem.

Are you planning on building one?
by JThomas
19 May 2012, 15:06
Forum: Cameras and Electronics
Topic: High MP webcam?
Replies: 0
Views: 1397

High MP webcam?

I am thinking about getting a high MP (MegaPixel) webcam or other type of video camera to get a live view on my computer screen and then use a program like Snagit to capture the image from the screen. This will not just be for books but microfiche, microfilm and slides. Does anyone know of a good hi...
by JThomas
19 May 2012, 14:57
Forum: Cameras and Electronics
Topic: Must have same camera?
Replies: 3
Views: 3098

Re: Must have same camera?

I am using a pair of DLSR's. A Canon XS and a T3i. Two different MP counts 18 for the T3i vs 10.1 for the XS. To equal out he sizes I just reduce the size from the T3i to the XS with a program that will do them in a batch. 10.1 MP is more than enough for OCR and all the files and up the same size fo...
by JThomas
13 May 2012, 19:14
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 27666

Re: A Scanner for books with text VERY close to the gutter.

That is awesome! How long did it take you to train FineReader for this? The reason I ask is that I tried training FineReader for an English-Latin dictionary that had accented characters plus greek letters, and after going through several pages of long and boring work, the thing couldn't tell the di...
by JThomas
10 May 2012, 16:49
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 27666

Re: A Scanner for books with text VERY close to the gutter.

Well, it took a while but I got all 2751 pages scanned and the scanner worked great through the entire process.
by JThomas
07 May 2012, 20:44
Forum: Tutorials/How-To's
Topic: Small high quality PDF files
Replies: 2
Views: 3854

Small high quality PDF files

I am working on a re-print for a very old book with a lot of images.

What is the best way to get a small file size (under 400K) but still have at least 300 DPI quality images.

There has to be a balancing point between size and quality.

Anyone have any experience on this subject?

Thanks
by JThomas
26 Apr 2012, 14:44
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 27666

Re: A Scanner for books with text VERY close to the gutter.

Oxford- Here is a final shot with all the bugs worked out. (cropped for posting). You can see the gutter and a little of the other page. I have the camera zoomed to bottom edge of the glass precisely. I am using ABBYY Finereader for OCR. I am training it specifically for this font. Seems to be worki...
by JThomas
22 Apr 2012, 16:41
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 27666

Re: A Scanner for books with text VERY close to the gutter.

Here is a preliminary shot taken holding everything by hand, including the light. The bottom edge of the picture is the actual edge of the glass. I actually have some room to spare on this page but others are closer. I didn't look for the worst case. You can see the reflection of the opposing page i...
by JThomas
21 Apr 2012, 23:41
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 27666

Re: A Scanner for books with text VERY close to the gutter.

Here's what I have so far, and as far as capturing the text close to the gutter it works perfect. The pressure from the bottom edge of the glass serves to press the opposing page out of the line of sight. (Second picture) The kit lens that comes with the XS actually let's you get 2.5" closer then th...
by JThomas
21 Apr 2012, 19:16
Forum: Scanners and Build Threads
Topic: A Scanner for books with text VERY close to the gutter.
Replies: 22
Views: 27666

Re: A Scanner for books with text VERY close to the gutter.

I am using a thin piece of glass salvaged from a flatbed scanner. It's works great in some tests I've performed.

Just waiting for my paint to dry and then a little more work to make everything adjustable, and then I'll be done.