Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!agate!eos!eugene
From: eugene@eos.UUCP (Eugene Miya)
Newsgroups: comp.graphics
Subject: Re: Scientific Visualization again(digitization)
Message-ID: <5651@eos.UUCP>
Date: 27 Nov 89 16:54:57 GMT
References: <11726@phoenix.Princeton.EDU> <1989Nov25.142552.1702@hellgate.utah.edu> <3399@jhunix.HCF.JHU.EDU> <5646@eos.UUCP> <1989Nov27.024857.9480@ux1.cso.uiuc.edu>
Reply-To: eugene@eos.UUCP (Eugene Miya)
Organization: NASA Ames Research Center, Calif.
Lines: 27

In article <1989Nov27.024857.9480@ux1.cso.uiuc.edu> mcdonald@aries.scs.uiuc.edu (Doug McDonald) writes:
>Well, I have a specific scientific graphics problem that left our
>NCSA helpless - they have nothing to help me. (In actual fact this
>arises from my hobby - but that matters not at all.)

Unfortunately, this tends to kind of matter with bureaucratic organizations
which control the type of equipment you need below.  I can only sympathize.

>I have a pile of negatives of a couple of astronomical objects
>
>So I have these 35 millimeter negatives (black and white usually,
>but some might be color). How do I get the data into a computer?
>I need a minimum of 256 gray levels, 1024 would be more than enough.

What you need is a Perkin-Elmer Microdensitometer (we had one in the
Radar Science and Engineering Group at JPL). You could not get 1K levels, nor
are they cheap, but you might contact a P-E salesperson to see if there is
one in your area which you might be able to borrow one some where.

Another gross generalization from

--eugene miya, NASA Ames Research Center, eugene@aurora.arc.nasa.gov
  resident cynic at the Rock of Ages Home for Retired Hackers:
  "You trust the `reply' command with all those different mailers out there?"
  "If my mail does not reach you, please accept my apology."
  {ncar,decwrl,hplabs,uunet}!ames!eugene
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