Message-Id: <199801152249.PAA54666@dns.ccit.arizona.edu> Date: Thu, 15 Jan 1998 14:47:12 -0800 From: John Blunden <mailto:blunden2@LLNL.GOV> Subject: Re: Need help in eliminating "bleed-through" To: mailto:IMAGELIB@LISTSERV.ARIZONA.EDU
A simple fix might be to copy the document on a Xerox and use whatever light/dark setting that gives a clean copy. The thicker paper and higher contrast should give good results. Kinda low tech, but we have used it to copy some really old originals with success.John
>Please excuse cross-posting.
>
>We are using a flatbed scanner and Photoshop 4.0 to create JPEG images of
>handwritten manuscripts, and recently encountered a series of documents
>written in dark ink on very thin onionskin paper. Consequently there is a
>bad "bleed-through" problem, i.e. writing on the verso can plainly be
>seen. This results in nearly illegible text. Does anyone on this list
>know of any trick, such as a mask or filter, that can reduce or eliminate
>this problem? I should add that the original mss. present the same
>problem, so any solution would in effect be improving on the visual
>quality of the originals.
>
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>Peter Nelson mailto:pnelson@mtholyoke.edu
>Five College Archives Digital Access Project
>c/o Mount Holyoke College Archives http://clio.fivecolleges.edu
>South Hadley, MA 01075 (413) 538-3020
> Don't anthropomorphize computers. They don't like it.
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