MedianFltImg
DESCRIPTION
Computes the median filter of an image.
A 3 x 3 neighborhood of points is sorted by value and the target point
is replaced by the median value. Other rank based filters are
MinFltImg, MaxFltImg, and RankFltImg. MedianFltImg is useful for
removing impulse or shot noise. The median filter is discussed in:
Digital Image Processing, Gonzales, R.C., Wintz, P.,
Addison Wesley, Second Edition, 1987, pp 162--163.
INPUTS
Port: Img In
Type: Lattice
Constraints: 1..3-D.
source image
WIDGETS
OUTPUTS
Port: Img Out
Type: Lattice
Constraints: 1..3-D.
filtered image
PROBLEMS
SEE ALSO
MinFltImg
MaxFltImg
RankFltImg
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© The Numerical Algorithms Group Ltd,
Oxford UK. 1996