UV_MULT

        UV_MULT  modifies  the  U,V length of a table in order to change the
    size of the final image.

    MULTA and MULTB are the multiplication factor.  The total flux  is  also
    modified  to  be  compatible with the new image (i.e. a doubled size ob-
    ject, has 4 times more flux).  An Intensity calibration factor can  also
    be used to modify the total flux by MULTC factor.