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NAME

       im_fractsurf - creates a fractal surface

SYNOPSIS

       #include <vips/vips.h>

       int im_fractsurf(in, frdim, size)
       IMAGE *in;
       double frdim;
       int size;

DESCRIPTION

       im_fractsurf creates a fracta surface.  The program initially creates a
       gaussian noise image (im_gausnoise(3)) of sizes size x size.  The image
       is  then  filtered  (im_flt_image_freq(3))  in order to force the power
       spectrum to decay according to the  desired  fractal  dimension  frdim.
       The  result is a one band float image and should be scaled for display.

RETURN VALUE

       The function returns 0 on success and -1 on error.

SEE ALSO

       im_flt_image_freq(3), im_gausnoise(3)

COPYRIGHT

       N. Dessipris,

AUTHOR

       N. Dessipris - 06/07/1990

                                  10 May 1991