swarp

Resample and co-add together FITS images

Description

Resample and co-add together FITS images using any arbitrary astrometric projection defined in the WCS standard. The main features of SWarp are:

* FITS format (including multi-extensions) in input and output,

* Full handling of weight-maps in input and output,

* Ability to work with very large images (up to 500 Mpixels on

32-bit machines and 10^6 Tpixels with 64-bits), thanks to customized

virtual-memory-mapping and buffering,

* Works with arrays in up to 9 dimensions (including or not two spherical

coordinates),

* Selectable high-order interpolation method (up to 8-tap filters) in any

dimension,

* Compatible with WCS and TNX (IRAF) astrometric descriptions,

* Support for equatorial, galactic and equatorial coordinate systems,

* Astrometric and photometric parameters are read from FITS headers or

external ASCIIfiles,

* Built-in background subtraction,

* Built-in noise-level measurement for automatic weighting,

* Automatic centering and sizing functions of the output field,

* Multi-threaded code with load-balancing to take advantageof multiple

processors.

* XML VOTable-compliant output of meta-data.

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