MobileRead Forums - View Single Post - bkrpr: book ripper/non-destructive scanner

latchkeyed · 02-02-2009, 06:10 PM

That's great.

Let me know if you have any questions about building the book ripper. I think we should have enough documentation on the site but I'm happy to fill in any gaps and would love to hear about someone else's experiences in building and using this.

As for MegaPixels, I find that 5 is generally plenty unless you want to preserve high resolution pictures, or need to capture things like amazingly small and detailed Chinese characters. I have one book on Chinese poetry and the characters are too small for me to read with my naked eyes (20/20 vision), but a 6-8MP picture has enough resolution that I can magnify it up to readable size without losing quality.

ereszet has some great information in the https://www.mobileread.com/forums/sho...279#post106279 "do-it yourself repro v-cradle for paper books" thread. One upshot, and there is a lot of information there, is that megapixel isn't the only determining factor, and things like size of the size of the actual sensor in the camera and the quality of the other camera components matter a great deal.

We've got a small page up summarizing my experiences with a couple cameras and what features make things faster/slower: http://bkrpr.org/doku.php?id=cameramodels

If you have a camera or two now, start with those! the post-holiday/recession sales are only going to get better so you can always decide to pick up some new cameras down the line.

You are right about the paperback books. Ive scanned a couple and they are indeed the most difficult for the book ripper to photograph, mostly just because the book is so much smaller than the device. I'm working on a smaller version, possibly using webcams, that will hopefully make scanning paperbacks even faster.

02-02-2009, 06:10 PM	#5
latchkeyed Member Posts: 20 Karma: 10 Join Date: Jun 2008 Device: Cybook Gen3	Mega Pixels That's great. Let me know if you have any questions about building the book ripper. I think we should have enough documentation on the site but I'm happy to fill in any gaps and would love to hear about someone else's experiences in building and using this. As for MegaPixels, I find that 5 is generally plenty unless you want to preserve high resolution pictures, or need to capture things like amazingly small and detailed Chinese characters. I have one book on Chinese poetry and the characters are too small for me to read with my naked eyes (20/20 vision), but a 6-8MP picture has enough resolution that I can magnify it up to readable size without losing quality. ereszet has some great information in the https://www.mobileread.com/forums/sho...279#post106279 "do-it yourself repro v-cradle for paper books" thread. One upshot, and there is a lot of information there, is that megapixel isn't the only determining factor, and things like size of the size of the actual sensor in the camera and the quality of the other camera components matter a great deal. We've got a small page up summarizing my experiences with a couple cameras and what features make things faster/slower: http://bkrpr.org/doku.php?id=cameramodels If you have a camera or two now, start with those! the post-holiday/recession sales are only going to get better so you can always decide to pick up some new cameras down the line. You are right about the paperback books. Ive scanned a couple and they are indeed the most difficult for the book ripper to photograph, mostly just because the book is so much smaller than the device. I'm working on a smaller version, possibly using webcams, that will hopefully make scanning paperbacks even faster.