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Originally Posted by latchkeyed
Interesting. Most of mine are bent and I've never seen a point on the corner. Might have something to do with the bending process but mine all have round edges. I did get one built joining two pieces to see if that would make a big difference. If you go that route you'll want the pieces to be beveled together before joining and you will probably need some side pieces to support the joint.
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Sorry, I was jusing using "point" as shorthand to mean, you know, the apex of the tent-like (or V-like) shape that the plexiglas forms. So yeah, it sounds like your "point" is bent and isn't a sharp point, just like mine will be.
[quote]As for the resolution, take a look at the OCR results here:
http://bkrpr.org/doku.php?id=results
I noticed that -- is the "large" image the actual output from the camera? The letters are significantly smaller than a 300dpi scan, but FineReader 9 actually recognized your "large" pages from Free Culture with 100% accuracy -- it had about 10 questionable characters, but they were all correct. So maybe my scans don't need to be nearly as big as I thought. (Although FineReader did pop up a little message saying "Increase scan resolution for better accuracy with small characters." But its concerns were unwarranted since it still recognized everything on your page just fine.)
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All those pictures were taken at 6MP. I've found 5MP is generally the floor for high quality OCR, but MP is certainly not everything.
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Yes, I noticed in the thread you linked to above, about cameras, that an SLR camera with a 2/3" sensor would be much better than a regular $100 digital camera, regardless of megapixel rating. But since none of us want to pay out $1000 for a couple of used SLR digitals, we'll have to see what kind of cheap consumer digital cameras work best.
Oh, and another question: I notice in your video that the book is sitting on a V-shaped cradle. Is that one of the "do it yourself repro V cradles" that
ereszet talked about in the thread you linked to? How much did that cost you to build?
Until I saw that video, I was mentally picturing the bookripper device as working the opposite way, with the book lying on top of the plexiglass and the cameras angled up at it. I wonder if such a system would work... or if you really need the weight of the device to hold the book's pages still.