Filter

Command line (1)

The Filter operation can be directly executed by typing one of the following expressions on the command line of the Main window:

OUTMAP	=	MapFilter(InputMapName, FilterName)
OUTMAP	=	MapFilter(InputMapName, FilterExpression)

where:

OUTMAP	is the name of your output map.
MapFilter	is the command to start the Filter operation.
InputMapName	is the name of your input map.
FilterName	avg3x3 \| binmajor \| conn8to4 \| d2fdx2 \| d2fdxdy \| d2fdy2 \| dfddn \| dfdup \| dfdx \| dfdy \| dilate4 \| dilate8 \| edgesenh \| inbnd4 \| inbnd8 \| laplace \| lifegame \| majority \| majundef \| majzero \| med3x3 \| med5x5 \| outbnd4 \| outbnd8 \| peppsalt \| shadow \| shrink4 \| shrink8 \| name of user-defined linear filter
FilterExpression	FilterLinear(rows,cols,expression) \| Average(rows,cols) \| RankOrder(rows,cols,rank[,threshold]) \| Median(rows,cols[,threshold] ) \| Majority(rows,cols) \| ZeroMajority(rows,cols) \| UndefMajority(rows,cols) \| Pattern(threshold) \| FilterStandardDev(rows,cols)

Tips:

For more information and some examples of using standard and user-defined filters on the command line, refer to Filters : user-defined filters.
To use this operation on all raster maps in a map list, see Filter : command line (2).

When the definition symbol = is used, a dependent output map is created; when the assignment symbol := is used, the dependency link is immediately broken after the output map has been calculated.