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IM_CONV

IM_CONV

Section: C Library Functions (3) Updated: 2 May 1991
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NAME

im_lowpass - remove high frequencies quickly  

SYNOPSIS

#include <vips/vips.h>

int im_lowpass(in, out, x, y)
IMAGE *in, *out;
int x, y;  

DESCRIPTION

Expand image up to X by Y pixels. Linear interpolation. Used by lowpass(1X) for simple and nasty low-pass filtering. The result is very poor, but good enough for smoothing out whites. Any number of bands, output size == input size, any non-complex type.

 

RETURN VALUE

The function returns 0 on success and -1 on error.  

SEE ALSO

im_shrink(3), im_similarity_area(3).  

COPYRIGHT


National Gallery  

AUTHOR

Too embarrassed to say


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
COPYRIGHT
AUTHOR

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