SYNOPSIS

#include <vips/vips.h>

int
im_smudge( im, ix, iy, r )
IMAGE *im;
int ix, iy;
Rect *r;

int
im_smear( im, ix, iy, r )
IMAGE *im;
int ix, iy;
Rect *r;

DESCRIPTION

im_smudge() performs a low-pass filter of the pels inside rect r. Rect r is clipped against the edges of the image. im_smear() is not very useful.

Both these functions are `in place,' that is, they write directly to the output image! Be very careful, you can destroy data.

RETURN VALUE

All functions return 0 on success and -1 on error.

SEE ALSO

im_insertplace(3), im_readpoint(3).

COPYRIGHT

National Gallery, 1992

AUTHOR

J. Cupitt