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  MEDIAN FILTER

       

Filters data within ADR by taking median value within a user defined window for each data point. The output is in the memory.

Median filtering is a non-linear filtering technique which is sometimes useful as it can preserve sharp features (e.g. lines) in an image whilst filtering noise.

The disadvantage is that it is difficult to treat analytically the effect of a median filter. There is no error propagation.



Andy Hammersley
8/26/1998