Michelle:
Considering the current cost of magnetic storage and the clear advantage in
recognition applications, I recommend 300 dpi to my clients now. The rule
is that 200 dpi on 8.5 x 11 yields 50 kilobytes. My testing has shown that
300 dpi produces about 75 KB.
It is not that 200 dpi won't work; in most cases it will. But the extra
detail will help the tough cases. I also recommend getting image
enhancement, which will correct for a number of flaws, like skew and poor
contrast.
Bernard Chester, CDIA+, ICP
Principal
7683 SE 27 Street, #316
Mercer Island, WA, 98040
(office) 206-230-9253
(cell) 206-979-7389
mailto:[log in to unmask]
-----Original Message-----
From: Records Management Program [mailto:[log in to unmask]] On Behalf
Of Michelle VanAllen
Sent: Monday, June 05, 2006 4:25 AM
To: [log in to unmask]
Subject: [RM] DPI
We are scanning some documents which will be OCR'd to create searchable
PDFs. The original paper documents are mostly types correspondence and
various forms. I have done some research which suggest that 300 dpi is
better when using OCR. It seems to suggest that the only disadvantage is the
larger space requirement and that may not be specific. I am interested to
know if any one else on the list has an opinion and/or experience regarding
the differences between 200 and 300 dpi for this type of application.
Michelle S. VanAllen
Supervisor Records and Administrative Services Santee Cooper PO Box 2946101
Moncks Corner, SC 29461-2901
(843) 761-8000 ext. 5340
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