IM_FAV4

Section: C Library Functions (3)
Updated: 13 April 1992
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NAME

im_fav4 - averages four frames

SYNOPSIS

#include <vips/vips.h>

int im_fav4(in, out)
IMAGE **in, *out;

DESCRIPTION

im_fav4 averages four input VIPS images, which must be unsigned byte images with any number of bands. This is useful for noise reduction by grabbing 4 frames and averaging them. With 7 bit images this will give quite a convincing eighth bit.

RETURN VALUE

returns 0 on success or -1 on error

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