24 lines
535 B
Groff
24 lines
535 B
Groff
.TH IM_FAV4 3 "13 April 1992"
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.SH NAME
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im_fav4 \- averages four frames
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.SH SYNOPSIS
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.B #include <vips/vips.h>
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.B int im_fav4(in, out)
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.br
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.B IMAGE **in, *out;
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.SH DESCRIPTION
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.B im_fav4
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averages four input VIPS images, which must be unsigned byte images with any
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number of bands. This is useful for noise reduction by grabbing 4 frames
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and averaging them. With 7 bit images this will give quite a convincing
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eighth bit.
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.SH RETURN VALUE
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returns 0 on success or -1 on error
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.SH SEE\ ALSO
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add(1)
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.SH COPYRIGHT
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.br
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K. Martinez 13/4/92
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