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18.12.6 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.