Task: mostess Purpose: Maximum Entropy deconvolution for a mosaiced observation Categories: deconvolution MOSMANY performs a joint maximum entropy deconvolution of a collection of dirty images from a mosaiced observation. Key: map The input dirty maps. No default. Key: beam The input dirty beams. No default. Key: default Default image name. The default is a flat image. Key: model Name of the initial estimate. Default is a flat initial estimate. Key: out The name of the output map. Key: niters The maximum number of iterations. The default is 30. Key: measure The entropy measure to be used, either "gull" (-p*log(p/e)) or "cornwell" (-log(cosh(p)) -- also called the maximum emptiness criteria). Key: tol Tolerance of solution. There is no need to change this from the default of 0.01. Key: q An estimate of the number of points per beam. MOSMEM can usually come up with a good, image-dependent estimate. Key: rmsfac MOSTESS knows the theoretical rms noise of the input dirty maps, and will, by default, attempt to reduce the residuals to have an rms of this amount. If the true rms noise is different from the theoretical, you may give the factor to multiply by to convert from theoretical to true rms noise. The theoretical rms will usually be an optimistic estimate of the true noise level. The true noise will be increased by calibration errors, confusion, poorly understood distant sidelobes, etc, so rmsfac will usually give some "fudge factor" greater than 1. Key: flux An estimate of the total flux of the source. Giving a good total flux will help MOSMEM find a good solution. On the other hand, giving a poor value may do harm. Normally MOSMEM will NOT constrain the total flux to be this value, but see the "doflux" option below. The default is image-dependent for measure=gull, and zero for measure=cornwell. Key: options Task enrichment parameters. Several can be given, separated by commas. Minimum match is used. Possible values are: doflux Constraint the flux to be that given by the "flux" parameter. Normally the "flux" parameter value is only used to determine the default image level. verbose Give lots of messages during the iterations. The default is to give a one line message at each iteration. Revision: 1.12, 2018/11/29 23:30:11 UTC

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