Name

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      SUBIMG_LOC

Purpose

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      Locate a subimage within an image.

Category

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Calling Sequence

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      subimg_loc, sub

Inputs

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      sub = Subimage to locate. in

Keyword Parameters

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Keywords

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        IMAGE=img Full image to search. If not given then
          the last given image is used.
        IX=ix, IY=iy Subimage best match offset into full image.
        CMAX=cmax Returned correlation max value.
        CORR_ARRAY=c Returned correlation array.
        INSIDE=[ixc,iyc] Only look inside subimage area for the
          best match, where (ixc,iyc) is the cnter of the given
          subimage in pixels.
        /NOSAD Do not do extra step of Sum of Absolute Differences.

Outputs

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Common Blocks

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      subimg_loc_com

Notes

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      Notes: For single band images only.

Reference

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          http://werner.yellowcouch.org/Papers/subimg/index.html

Modification History

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      R. Sterner, 2008 Mar 31
      R. Sterner, 2012 Apr --- Cleaned up.
      R. Sterner, 2012 Apr 27 --- Added INSIDE=[ixc,iyc]
  Copyright (C) 2008, 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.