Simple MPIL (red symbols) overlaid on the photospheric distribution of B_z (left), the respective Gaussian MPIL mask (middle), and the magnetogram after applying the Gaussian mask on it (right), for AR 12673 on 6 September 2017, 10:24 UT (top row). Similarly, in the bottom row, simple HPIL_DV (black symbols) on top of the photospheric distribution of RFLH in the DV gauge (left), the respective Gaussian HPIL_DV mask (middle), and the magnetogram after applying the Gaussian HPIL_DV mask on it (right).