/* Call im_erode via arg vector.
*/
static int
erode_vec( im_object *argv )
{
im_mask_object *mo = argv[2];
return( im_erode( argv[0], argv[1], mo->mask ) );
}
VALUE
img_erode(VALUE obj, VALUE mask)
{
INTMASK *imask;
GetImg(obj, data, im);
OutImg2(obj, mask, new, data_new, im_new);
mask_arg2mask(mask, &imask, NULL);
if (im_erode(im, im_new, imask))
vips_lib_error();
return new;
}