| Cubic interpolations [message #4] |
Sun, 17 March 1991 22:28 |
gsh7w
Messages: 9
Registered: March 1991
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Junior Member |
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I am posting this for a friend who is currently without acces to
usenet. I will forward any posted reply, or e-mail replies. The person
has their e-mail at the end.
############################################################ ########
I am looking for an IDL procedure, or a FORTRAN or C program that
can be linked to IDL, which would rotate images using a cubic
interpolation algorithm. More generally, I would be looking for
an emulation of POLY_2D that would include a cubic interpolation option.
Our group has found (using a mainframe) that rotation with cubic
interpolation significantly reduces the smearing that can occur when
using the bilinear algorithm. There is, of course, a significant
increase in computation time, but workstations are now powerful enough
that this can be an interactive option.
Wayne Landsman
ST Systems Co.
landsman@stars.gsfc.nasa.gov (Internet)
6170:::LANDSMAN (SPAN)
(301) - 286 - 3625
--
-Greg Hennessy, University of Virginia
USPS Mail: Astronomy Department, Charlottesville, VA 22903-2475 USA
Internet: gsh7w@virginia.edu
UUCP: ...!uunet!virginia!gsh7w
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