**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)