i recently stumbled into a rack of VERY old plat books, most published by Klinge. i want to get them digitized. these are papers that were pasted onto cloth book pages. the books look like the old plat books from courthouse archives, roughly 24x17, will have to verify size.
i was thinking of building a rack for a digital camera, to maintain an orientation and distance from the page. or should i look into scanning? if i HAVE TO scan, it would have to be a flat scanner, not a feed into machine, as the pages are decomposing as i type.
anyone ever take this on? your advice, as always, would be appreciated
Even crumbling maps can be inserted into a plastic case with a thin backing board. You have to keep the map from rolling as it goes through the scanner. That, however is a slow process and not all scanners accept thick maps.
I do know there was an article recently in American Surveyor about a Caltrans project where they perfected the whole camera digitizing method. Might be worth looking into and giving them a call. JRL
Depends on planned use
If all you want to do is preserve and be able to read the maps & data, then a good digital camera with good lighting will be sufficient.
However, if you want to be able to reproduce to scale with no slant, tilt, etc etc then a flat bed scanner is best.
From a non-destructive standpoint, a camera would be best.
Depends on planned use
> However, if you want to be able to reproduce to scale with no slant, tilt, etc etc then a flat bed scanner is best.
But camera + good photogrammetric software...?
dave
> If all you want to do is preserve and be able to read the maps & data, then a good digital camera with good lighting will be sufficient.
>
> However, if you want to be able to reproduce to scale with no slant, tilt, etc etc then a flat bed scanner is best.
>
> From a non-destructive standpoint, a camera would be best.
yes, these plats and docs don't appear that scale will be a make or break issue. a lot of the plats aren't really m&b plats, but a little somewhere between a plat and a tax map. having some of these old 'plats' would make better sense of putting together an old deed mosaic, if there were no other plats available. does that make sense to you?
other question; if i use the camera, i think i will need a piece of glass to keep the paper flat. should the glass have a slight matte finish, because of the flash/lighting glare?
martin
> > However, if you want to be able to reproduce to scale with no slant, tilt, etc etc then a flat bed scanner is best.
>
> But camera + good photogrammetric software...?
i don't foresee a need for photogrammetry software. if the software is necessary, i might be out of my league...i have never used photogrammetry software, nor do i want to imagine its cost