getroi

 [select, coord] = getroi(array, dialtext, tol)  Select and return region of interest

 [select, coord] = getroi(array, dialtext, tol) GUI, region of interest select
 Select and return image region of interest (ROI) via a GUI window and
 'right-button-mouse' operation. If the mouse button is clicked and
  released without movement, the entire displayed image will be selected.
  array    = input image array(nlin, npix [, ncolor])
  dialtext = (optional) string for title of dialog box (e.g. data id)
  tol      = tolerance in pixels less than which whole image is selected
             default = 10 (simple click selects all)
           = negative  If negative, the ROI rectangle is taken as a single
             line or column. If the smaller dimension of ROI is less than
              abs(tol), then that dimension is taken as 1.
  select (double) - output ROI as an array(newlin, newpix[, ncolor])
  coord is list of coordinates of ROI (upperleft(x,y),lowerright(x,y))

 Author: Peter Burns, pdburns@ieee.org
 copyright 2004 by Peter D. Burns. All rights reserved.
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