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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)