Grid Shrink/Expand
grid_tools
ParameterRaster|INPUT|Grid|False
ParameterSelection|OPERATION|Operation|[0] Shrink;[1] Expand
ParameterSelection|MODE|Search Mode|[0] Square;[1] Circle
ParameterNumber|RADIUS|Radius|0.0|None|1
ParameterSelection|METHOD_EXPAND|Method|[0] min;[1] max;[2] mean;[3] majority
OutputRaster|RESULT|Result Grid