Sun Demo Help

       This demo shows several ways to view image
data using IDL.  The first picture that you see is
of the sun's intensity as measured through a 100x100
element diode array.  Since the file is only 100
pixels square, the image is interpolated to 400 pixels
square. In IDL, this can be done with one statement, as
shown below:

  big_image = rebin(original_image, 400, 400)

       The second image is of the velocity of the
magnetic fields around the sun.  This image was also
created with the 100x100 diode array.  By accounting
for Doppler shift from the middle of the sun to the
edges, an accurate sample could be taken.  Again the
image was interpolated to the 400x400 resolution that
you see.

       Our thanks to Dan Haynes of the HAO division
at the National Center for Atmospheric Research in
Boulder, Colorado for his contribution of the data
used in this Sun Image Example.