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From: beach@herbarium.bpp.msu.edu (Jim Beach)
Newsgroups: comp.graphics
Subject: A basic reference on graphics resolution
Message-ID: <1991Mar13.145651.2781@msuinfo.cl.msu.edu>
Date: 13 Mar 91 14:56:51 GMT
Sender: news@msuinfo.cl.msu.edu
Reply-To: beach@herbarium.bpp.msu.edu (Jim Beach)
Organization: Botany, Michigan State University, E. Lansing
Lines: 18

When I scan a photo at a higher resolution, the size of the image increases.
Why is that?  Intuitively, it seems the image size should remain the same
but with a "denser" representation.

Could anyone recommend an introductory discussion of resolution which
would touch on image file contents and size, software and hardware 
constraints and perhaps even human vision aspects?

Is there a reference similar to Edward Tufte's books on the display of
quantitative information - but for bitmapped images?

Many thanks.


Jim Beach                                       jhbeach@msu  (Bitnet)
Department of Botany and Plant Pathology        beach@herbarium.bpp.msu.edu
Michigan State University
East Lansing, Michigan 48824-1312, U.S.A