There are the post-processing tools to yield non-LTE/LTE molecular line or Zeeman effect (Stokes V) image, the continuum emission map, and the column density image. SPARX provides four types of command : “task_lineobs”, “task_zeeman”, “task_contobs”, and “task_coldens”.
Check the usage of the specific task by using sparx help

$ sparx help task_lineobs

Name:
  task_lineobs

Description:
  Synthetic line map generator

Keywords:
        line=Index
             (No default)
             Line index of observing line
        
        ...
The Post-processing : Image Generation