; PIXAVG
;---------------------------------------------------------------
;! Average image value
;# ADVERB IMAGING TV
;-----------------------------------------------------------------------
;;  Copyright (C) 1995, 2020
;;  Associated Universities, Inc. Washington DC, USA.
;;
;;  This program is free software; you can redistribute it and/or
;;  modify it under the terms of the GNU General Public License as
;;  published by the Free Software Foundation; either version 2 of
;;  the License, or (at your option) any later version.
;;
;;  This program is distributed in the hope that it will be useful,
;;  but WITHOUT ANY WARRANTY; without even the implied warranty of
;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;  GNU General Public License for more details.
;;
;;  You should have received a copy of the GNU General Public
;;  License along with this program; if not, write to the Free
;;  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
;;  MA 02139, USA.
;;
;;  Correspondence concerning AIPS should be addressed as follows:
;;         Internet email: aipsmail@nrao.edu.
;;         Postal address: AIPS Project Office
;;                         National Radio Astronomy Observatory
;;                         520 Edgemont Road
;;                         Charlottesville, VA 22903-2475 USA
;-----------------------------------------------------------------------
;---------------------------------------------------------------
PIXAVG    LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
PIXAVG
Type: Adverb   (Real)
Use:  An average image value in the units specified in the
      image header.
Null value:  none.
Verbs:
   ACTNOISE.....Puts estimate of actual image uncertainty and zero in
                header.
   IMSTAT.......Determine image statistics in rectangular area and
                return results in adverbs.
   TVSTAT.......Determine image statistics in polygonal areas set with
                the TV cursor and return results in adverbs.
Tasks:
   DCONV........Deconvolves a Gaussian from an image.  PIXAVG is the
                minimum average correction to stop the iterations.
   IMEAN........Displays the mean & extrema and plots histogram of an
                image.
   SERCH........Finds line signals in transposed data cube.
----------------------------------------------------------------
