.TH IM_FRACTSURF 3 "10 May 1991"
.SH NAME
im_fractsurf \- creates a fractal surface
.SH SYNOPSIS
.B #include <vips/vips.h>

.B int im_fractsurf(in, frdim, size)
.br
.B IMAGE *in;
.br
.B double frdim;
.br
.B int size;
.SH DESCRIPTION
.B 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.
.SH RETURN VALUE
The function returns 0 on success and -1 on error.
.SH SEE\ ALSO
im_flt_image_freq(3), im_gausnoise(3)
.SH COPYRIGHT
.br
N. Dessipris,
.SH AUTHOR
N. Dessipris \- 06/07/1990