>  Docs Center  >  Libraries  >  Coyote  >  CHECKERBOARD

CHECKERBOARD

CHECKERBOARD

Name


      Checkerboard

Purpose


      This function returns a 2D image, with boxes of alternating colors.
      Checkerboard images are useful in certain types of image processing
      procedures and for making blended image masks.

Author


      FANNING SOFTWARE CONSULTING
      David Fanning, Ph.D.
      1645 Sheely Drive
      Fort Collins, CO 80526 USA
      Phone: 970-221-0438
      E-mail: david@idlcoyote.com
      Coyote's Guide to IDL Programming: http://www.idlcoyote.com

Category



      Image Processing

Calling Sequence



        board = Checkerboard()

Return Value



        board: A 2D long array of alternating colored boxes.

Arguments



        boxes: The number of boxes of alternating colors on each side
                    of the resulting image. Must be an even integer greater
                    than or equal to two. Optional. Default is 8 (normal
                    checkerboard).

Input Keywords



  BLACK: The value of the "black" boxes. By default, 0.
  WHITE: The value of the "white" boxes. By default, 255.
  XSIZE: The X size of the returned image. By default, 400.
  YSIZE: The Y size of the returned image. By default, 400.

Common Blocks



  None.

Example



        IDL> cgImage, Checkerboard()

Modification History



  Written by David W. Fanning, 26 September 2007, based on suggestions
  of JD Smith on IDL newsgroup 25-26 Septermber 2007.



© 2019 Harris Geospatial Solutions, Inc. |  Legal
My Account    |    Store    |    Contact Us