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 BillGill
30 Oct 2018, 09:25
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

Thanks, that did it.

Bill
by BillGill
29 Oct 2018, 09:40
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

Backing up to my reply yesterday. I tried resetting the image quality on my Elph 160 and then snapped a test shot. When I ran it through the OCR I got a much better file than either the low res or the Pi Cam. So I am recommending that people not use the Raspberry PI with a Pi Camera. The image quali...
by BillGill
28 Oct 2018, 10:08
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

Thanks, I'll have to try that. In that case the Canon may do a better job than the PI Camera. It will certainly be simpler. I have been beating my head against the wall to get some software that would do what I want. I haven't found any available that does what I want it to do. That would be to show...
by BillGill
27 Oct 2018, 09:40
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

That is a strange! I checked scans from couple of other books I have scanned and the images are all running in about the same size range. The pixel dimensions are also much lower than yours. But they are 180 dpi, the same as yours. Of course the dpi is kind of an awkward thing. dpi represents how ma...
by BillGill
26 Oct 2018, 09:26
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

I attributed the improvement of the OCR to the fact that the image from the Pi Camera has much better resolution. However the Pi Camera has 8 MPX resolution and the Canon has 20 MPX resolution. So that is backward from what I was thinking. However the image size is the other way around. The Canon im...
by BillGill
25 Oct 2018, 09:32
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

I didn't post the original files because the files are so large. I would have to run them through Photoshop to compress them down to a size that I can upload to the forum. So the differences might be lost to the compression. I want to emphasize that this book was worse than average. I spent almost 1...
by BillGill
24 Oct 2018, 11:10
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

Ok, I don't have a full setup using a Pi Camera for scanning, but I have gotten far enough to do some test scans. I had some problems coming up with a mount that (almost) satisfies me. I decided that the main item of interest was not exactly the look of the images, but what the OCR saw in the images...
by BillGill
15 Oct 2018, 09:24
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: 8
Views: 1093

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

Is the location of that rectangle based on the image edges? The way I scan I wind up with the images moving around in the camera's field of view. Also I sometimes wind up with the images being in different orientations, at least as seen in Windows Explorer. With at least one of my scanners I wound u...
by BillGill
13 Oct 2018, 09:29
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: 8
Views: 1093

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

I'm not sure that using something like that would be worth the effort. Currently I check for gaps/duplicates by going to File Explorer and viewing each page to see if there are any skipped/duplicate pages. If I had to edit each image to get the page number it would take much longer, so there would b...
by BillGill
07 Oct 2018, 09:48
Forum: Cameras and Electronics
Topic: Raspberry PI camera?
Replies: 19
Views: 15048

Re: Raspberry PI camera?

I got started working with the Raspberry Pi camera yesterday. I think maybe AMT's USB camera https://forum.diybookscanner.org/viewtopic.php?f=15&t=3535 might be a better choice than a Pi camera. If, as he says there is free software to control the camera, then you get to bypass a bunch of stuff in p...