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ISIS: A method for optimal image subtraction
Christophe Alard
DASGAL, Observatoire de Paris
Robert Lupton
Department of Astrophysical Sciences, Princeton University
Abstract:
ISIS is a complete package to process CCD images using the image
Optimal subtraction method (Alard & Lupton 1998, Alard 1999).
The ISIS package can find the best kernel solution even in case
of kernel variations as a function of position in the image.
The relevant computing time is minimal in this case and is only
slightly different from finding constant kernel solutions.
ISIS includes as well a number of facilities to compute the
light curves of variables objects from the subtracted images.
The basic routines required to build the reference frame and make
the image registration are also provided in the package.
Subject headings: methods: data analysis -- methods: statistical -- techniques: image processing
Latest Version: ISIS-2.0
Archived: 1999 September 17
Paper:
Alard, C. & Lupton, R. H., 1998ApJ...503..325A
Preprints:
astro-ph/9903111,
astro-ph/9712287
Languages: C, unix shell scripts
External Explanatory Pages:
http://www.iap.fr/users/alard/package.html
Source Code:
ISIS-2.0.tar.gz