MinFltImg
DESCRIPTION
Computes the minimum filter of an image.
A 3 x 3 neighborhood of points is sorted by value and the target point
is replaced by the minimum value. The result is similar to a
morphological erosion operation. Other rank based filters are
MedianFltImg, MaxFltImg, and RankFltImg. The minimum filter is similar
to the median filter, 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
MedianFltImg
MaxFltImg
RankFltImg
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© The Numerical Algorithms Group Ltd,
Oxford UK. 1996