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im_addgnoise - add gaussian noise to an image
#include <vips/vips.h>
int im_addgnoise(in, out, sigma)
IMAGE *in, *out;
double sigma;
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.
The function returns
0 on success and -1 on error.
im_add(3)
, im_lintra(3)
, im_multiply(3)
.
N. Dessipris
N. Dessipris - 25/04/1991
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