MAP_CONTINUUM SCM
Keywords: imager

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MAP_CONTINUUM SCM

            [ADVANCED\]MAP_CONTINUUM  [DIRTY|CLEAN|Other] /METHOD SCM [Threshold
        [MaxIter]]

          Compute the continuum based on the per-pixel spectrum.  Each  spectrum
        is  sigma-clipped  until convergence of the noise. The method is similar
        to the GAUSS method, but more robust at the expense of lower  speed  be-
        cause of the iterative median  clipping. Threshold is the number of sig-
        ma used for clipping. MaxIter is the maximum number of  clipping  opera-
        tions performed (default 6).

          The  method does not deliver a spatially independent noise, but adapts
        the bandwidth to the line free zones for each pixel.  It  may  fail  for
        pixels  with  are  close  to  line confusion, though less than the GAUSS
        method.