Search found 134 matches
- 16 May 2018, 02:51
- Forum: Scanners and Build Threads
- Topic: Libreflip - a new open source page-turning bookscanner
- Replies: 16
- Views: 51960
Re: Libreflip - a new open source page-turning bookscanner
Could you please tell more about those "USB 3.0 Industrial Cameras with 13 Megapixel each" which are included in the "just electronics" package? I had been looking for such, but found only cameras geared towards video, not stills. Added somewhat later: I found it on your website:...
- 12 May 2018, 16:06
- Forum: Cameras and Electronics
- Topic: Is there an optimal angle of view of the camera?
- Replies: 4
- Views: 11465
Re: Is there an optimal angle of view of the camera?
After writing my initial post, I came to the conclusion that the best is a vertical look on the page, a 90° view or a 0° angle of view. That's what a scanner does with its moving bar of sensors. But when using a camera, additional constraints have to be considered, as duerig explained. Theoretically...
- 11 May 2018, 17:05
- Forum: Cameras and Electronics
- Topic: Is there an optimal angle of view of the camera?
- Replies: 4
- Views: 11465
- 05 May 2018, 07:01
- Forum: Cameras and Electronics
- Topic: Is there an optimal angle of view of the camera?
- Replies: 4
- Views: 11465
Is there an optimal angle of view of the camera?
Is there an optimal angle of view of the camera? Consider a rectilinear lens in a camera used to photograph an object at a distance S1 , and forming an image that just barely fits in the dimension, d , of the frame (the film or image sensor), where F is meant to be the focal length, which then resul...
- 05 May 2018, 06:46
- Forum: Cameras and Electronics
- Topic: Casio Exilim EX-FR100 camera module and controller
- Replies: 2
- Views: 7907
Re: Casio Exilim EX-FR100 camera module and controller
The 10.2 megapixel with 4000x3000 pixels are sufficient for 300dpi of an ISO A4 sized page, and more dpi of smaller pages. As a disadvantage I see the lack of zoom, which requires to adjust the distance of the camera to the page relative to the page dimensions. A worm drive for this in the book sca...
- 01 May 2018, 13:18
- Forum: Scan Tailor
- Topic: Two very similar pages, two very different results
- Replies: 11
- Views: 20088
- 26 Apr 2018, 02:49
- Forum: Scan Tailor
- Topic: Two very similar pages, two very different results
- Replies: 11
- Views: 20088
Re: Two very similar pages, two very different results
Unfortunately I can't upload images to this forum. You should be able to attach files, [...], using the 'Attachments' tab below, and then optionally display images 'inline' in your posts. I had tried that, but apparently I don't know the syntax of the BB-Commands to show images inline in a message....
- 25 Apr 2018, 12:34
- Forum: Scan Tailor
- Topic: Two very similar pages, two very different results
- Replies: 11
- Views: 20088
Re: Two very similar pages, two very different results
https://postimg.cc/image/cj0psw4u1/ Here is the original scanned page. I got it! Unfortunately I can't upload images to this forum. Settings in the "Output" stage: Mode = Black and White In the box "Options" Cut margins = ON Equalize illumination = OFF Savitzky-Golay smoothing =...
- 25 Apr 2018, 03:35
- Forum: Scan Tailor
- Topic: Two very similar pages, two very different results
- Replies: 11
- Views: 20088
Re: Two very similar pages, two very different results
Bom dia, Okelvin, the resolution of the images which you posted is very low. Are these just copies with a reduced size for display on this forum, or are those the images you are working with in Scan Tailor? And which version of Scan Tailor are you using? I tried your images wich Scan Tailor Advanced...
- 24 Apr 2018, 16:56
- Forum: Scan Tailor
- Topic: Two very similar pages, two very different results
- Replies: 11
- Views: 20088
Re: Two very similar pages, two very different results
With the "notgood2.png" I get the opposite result: the table in the upper part becomes a clear black and white, while in the lower part the blue appears as all black.