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IMG_SMOOTHC

IMG_SMOOTHC

Name


      IMG_SMOOTHC

Purpose


      Convolution smooth a 2-D or 3-D image array.

Category


Calling Sequence


      out = img_smoothc(in,sm)

Inputs


      in = Input image. in
      sm = smoothing value (def=none) in
        1.0 is strong, 0.1 is mild smoothing for default width.

Keyword Parameters


Keywords


        WIDTH=w Width of convolution smoothing kernel (def=5).
          Make sure w is odd to avoid shifting the image.
        /ZERO means zero edge effect pixels instead of assuming
          repeated pixels at image edge.
        ERROR=err error flag: 0=ok, 1=not 2-D or 3-D,
          2=wrong number of color channels for 3-D array.

Outputs


      out = Smoothed image. out

Common Blocks


Notes


      Note: deals with 2-D or 3-D image arrays and smooths
        correct image planes. Output data type is same as input.
        Uses convolution smoothing with a gaussian kernel.
        Wider kernels give more edge effect.

Modification History


      R. Sterner, 2001 Jan 05
      R. Sterner, 2001 Jun 04 --- changed name to img_smoothc.
      R. Sterner, 2010 May 12 --- Converted arrays from () to [].
      R. Sterner, 2014 Jul 28 --- Added /CONE and KERNEL=k.
  Copyright (C) 2001, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.



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