im_addgnoise3
Add gaussian noise to an image
Usage
#include <vips/vips.h>
int im_addgnoise(in, out, sigma)
IMAGE *in, *out;
double sigma;
Overview
im_addgnoise() adds gaussian noise with mean 0 and standard deviation sigma to the image held by the image descriptor in and writes the result on the image descriptor out. The function works on any non-complex input image. Input can have any no of bands. The noise is generated by adding 12 random numbers.
Return value
The function returns 0 on success and -1 on error.
Releases
Unchanged in 4 releases since Debian 3.1 (Sarge).