[sane-devel] `Scanning' with a Digital Camera
Herbert Carl Meyer
hcmeyer at gmail.com
Sat Dec 12 11:44:14 UTC 2009
>From an item on boingboing, an instructable on building a book scanner.
Unbelievably, they wrote a windows app to convert the images to .pdf's.
I do not think the app does ocr.
On Tue, 2009-12-01 at 22:38 -0600, brian at amason.net wrote:
> Actually there are dedicated devices to do this type of thing. Goggle
> would be nuts to build one. You have to be careful with those old books.
> Goggle is probably using a set up similar to what the Mormons do for
> filming the old Church Books.
> On Tue, December 1, 2009 5:09 pm, Herbert Carl Meyer wrote:
> > I think this is the approach google is using for google books. I read
> > something a few months ago about a patent application involving a bit of
> > trig to correct for tilted pages. Google it ?
> > Carl
> > On Tue, 2009-12-01 at 14:21 -0600, brian at amason.net wrote:
> >> I don't see why you couldn't import the pictures into your scanning
> >> application and manipulate them that way. The previous suggestion to use
> >> Gimp to clean them up first is an excellent idea. Also, if you are
> >> planning on making this a long term solution, you might want to make a
> >> frame to hold your item to be scanned and a mount for the camera, along
> >> with a good white light source to completely illuminate the subject
> >> matter.
> >> Something that could be done for a few bucks, pick up a big cheap framed
> >> picture from a swap meet or thrift store, get an old piece of plywood
> >> (or
> >> a new one, a pair of hinges, a pair of sticks screwed together at 90
> >> degrees, a pair of brackets, and some velcro straps for the camera.
> >> Voila,
> >> improv scanner stand!
> >> ___=======
> >> [___] 
> >> 
> >> / 
> >> / 
> >> / 
> >> / 
> >> . 
> >> ===================
> >> Definitely has a bit of a maker type of thing, and it'd be cheaper to
> >> just
> >> buy a cheap linux friendly scanner than make the above. Of course the
> >> above design could be easily improved upon with the addition of a pair
> >> of
> >> worm screws and motors, and a control circuit. You could easily build
> >> yourself an awesome plotter sized "scanner". hmmm...
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