DT               3262 modules/imgproc/src/filter.cpp     typedef typename CastOp::rtype DT;
DT               3332 modules/imgproc/src/filter.cpp     typedef typename CastOp::rtype DT;
DT               3439 modules/imgproc/src/filter.cpp     typedef typename CastOp::rtype DT;
DT               3903 modules/imgproc/src/filter.cpp     typedef typename CastOp::rtype DT;