Cfitsio Toolkit - fitswrite

: fitswrite(data, filename)

: fitswrite(data, filename, propertyname, propertyvalue)

Write image data data to FITS file filename. If the fie already exists, overwrite it.

data - imagedata to write to a file.

filename - filename to write to.

propertyname, propertyvalue - property name/value pairs

Additional properties can be set as propertyname, propertyvalue pairs. Known property names are:

WriteMode: Set mode for writing to image as ’overwrite’ (default) or ’append’ to append images.
Compression: Set compression type to use for image as ’none’ (default), ’gzip’, ’rice’, ’hcompress’ or ’plio’.

None

 filename = tempname();
 X =  double([1:3;4:6]);
 fitswrite(X, filename);