NAME
im_gaussnoise - creates a gaussian noisy picture
SYNOPSIS
#include <vips/vips.h>
int im_gaussnoise(image, xsize, ysize, mean, sigma)
IMAGE *image;
int xsize, ysize;
double mean, sigma;
DESCRIPTION
im_gaussnoise() creates a float one band gaussian noise picture of size
xsize by ysize. The created image has mean mean and square root of
variance equal to sigma. The noise is generated by averaging 12 random
numbers.
RETURN VALUE
The function returns 0 on success and -1 on error.
SEE ALSO
im_grey(3), im_addgnoise(3).
COPYRIGHT
N. Dessipris
AUTHOR
N. Dessipris - 10/05/1991
10 May 1991 IM_GAUSNOISE(3)