REGISTER_FILTER(MERGEPLANES, mergeplanes, vf);
REGISTER_FILTER(MESTIMATE, mestimate, vf);
REGISTER_FILTER(METADATA, metadata, vf);
REGISTER_FILTER(MERGEPLANES, mergeplanes, vf);
REGISTER_FILTER(MESTIMATE, mestimate, vf);
REGISTER_FILTER(METADATA, metadata, vf);