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Re: MPEG creation with IDL [message #5649 is a reply to message #5527] Wed, 17 January 1996 00:00 Go to previous message
Eric Deutsch is currently offline  Eric Deutsch
Messages: 11
Registered: May 1995
Junior Member
Bringfried Stecklum wrote:
>
> Probably, this is almost a FAQ but, nevertheless, here is the question. Is
> anybody aware of an procedure coded in IDL to create MPEG movies from a
> datacube?
> Any suggestions are highly appreciated.

As far as I know there is nothing in IDL to create MPEG movies.
To make MPEG movies, I use IDL to create a series of .GIF images
and then use a unix utility called mpeg_encode (available somewhere
via anonymous ftp; ask archie) to create the movie from the GIF series.

For example, I have a script set up which gets an image from an IR
sky scanner, stretches the image appropriately, overlays coordinate grids,
etc. and writes a GIF image. Then, the script calls mpeg_encode to
make a movie. If anyone is interested, you can see archived Apache Point
Observatory all-sky image movies at the address:

http://www.astro.washington.edu/deutsch/apoinfo/cloudscan/mp egarchive.html
and
http://www.astro.washington.edu/deutsch/apoinfo/cloudscan/la testimage.html

This page also points to various other pages that allows one to view each
all-sky image as it comes from the camera, etc. The camera only runs
at night and when there is no precipatation.

Eric

--
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Eric Deutsch email: deutsch@astro.washington.edu
Department of Astronomy Voice: (206) 616-2788
University of Washington FAX: (206) 685-0403
Box 351580 WWW: http://www.astro.washington.edu/deutsch
Seattle, WA 98195-1580 Physics/Astronomy Bldg., Room B356F
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