MAP_CONVOLVE USER

        [CLEAN\]MAP_CONVOLVE OutCube InCube USER s0 s10 s11 s20 s21 s22

    Spatially convolve a data cube by a user specified symmetric 5x5 kernel. The
    kernel is defined by its 6 coefficients:
          S22 S21 S20 S21 S22
          S21 S11 S10 S11 S21
          S20 S10 S00 S10 S20
          S21 S11 S10 S11 S21
          S22 S21 S20 S21 S22
    Negative kernel values can be used to enhance fine gradients.