30 lines
778 B
Groff
30 lines
778 B
Groff
.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
|