% median_filter [options] [parameter_file]
Median_Filter produces a median filtered map in which the value of each pixel is the median of the input map valid pixels found within a disk of given radius centered on that pixel. A pixel flagged as 'non-valid' in the input map can either be left unchanged or 'filled in' with the same scheme, if at least one valid pixel is found among its neighbors.
If the map is polarized, each of the three Stokes components is filtered separately.
Median_Filter runs in interactive mode, self-explanatory.
|median_filter [option] filename|
When 'filename' is present, median_filter enters the non-interactive mode and parses its inputs from the file 'filename'. This has the following structure: the first entry is a qualifier which announces to the parser which input immediately follows. If this input is omitted in the input file, the parser assumes the default value. If the equality sign is omitted, then the parser ignores the entry. In this way comments may also be included in the file. In this example, the file contains the following qualifiers:
Median_Filter reads the sky map from 'map.fits'. Since
has its default value, ..., The median will be computed on a disk of 20 arcmin in radius, and the result will be written in 'med.fits'.
- Initial release (HEALPix 2.00)
|can not allocate memory for array xxx||Fatal||You do not have sufficient system resources to run this facility at the map resolution you required. Try a lower map resolution.|
this is not a binary table
|the fitsfile you have specified is not of the proper format|
|there are undefined values in the table!||the fitsfile you have specified is not of the proper format|
|the header in xxx is too long||the fitsfile you have specified is not of the proper format|
|XXX-keyword not found||the fitsfile you have specified is not of the proper format|
|found xxx in the file, expected:yyyy||the specified fitsfile does not contain the proper amount of data.|
Version 3.31, 2017-01-06