NAME:
  findobji
 PURPOSE:
  Locate image changes with 3-plane color overlays (array version)
 DESCRIPTION:

 CATEGORY:
  Astronomy
 CALLING SEQUENCE:
  findobji,image1,image2[,image3]

 INPUTS:

  First input format:
     image1 - Image #1 (red)
     image2 - Image #2 (green)
     image3 - Image #3 to load into the blue image plane (default=image2)

  images are all arrays

 OPTIONAL INPUT PARAMETERS:

 KEYWORD INPUT PARAMETERS:
  BINFAC  - binning factor for image display, default=1
  QUEUE   - Printer queue for hardcopy, default is chani for color and
              office for b/w
  HISIG   - Upper end of stretch in units of sigma (default=5)

 OUTPUTS:
  No explicit outputs but you are prompted for a final hardcopy in either
    color or black and white.

 KEYWORD OUTPUT PARAMETERS:
  CCUBE   - If provided, this keyword returns a three dimensional byte array
              of the final stacked color cube displayed in window 3.
  FCUBE   - If provided, you get the floating point image stack

 COMMON BLOCKS:

 SIDE EFFECTS:

 RESTRICTIONS:
  You must have a 24-bit color display to use this program.

 PROCEDURE:

 MODIFICATION HISTORY:
  2012/08/16 - Written by Marc W. Buie, Southwest Research Institute, cloned
                 from findobj.pro
  2019/08/23, MWB, added HISIG keyword