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mmFlood
Flooding filter- h,v,a-basin and dynamics (depth, area, volume)

Synopsis

Image mmFlood ( const Image& fin , const Double& T , const String& option , const Strel& Bc = NullStrel );

Input

fin Image [ Gray-scale (uint8 or uint16) image ]

T Double []

Criterion value. If T==-1, then the dynamics is determined, not the flooding at this criterion. This was selected just to use the same algoritm to compute two completely distinct functions.
option String

criterion: 'AREA', 'VOLUME', 'H'.
Bc Structuring Element

Connectivity.

Default: NullStrel (3x3 elementary cross)

Output

y Image [ Gray-scale (uint8 or uint16) image ]

Description

This is a flooding algorithm. It is the basis to implement many topological functions. It is a connected filter that floods an image following some topological criteria: area, volume, depth. These filters are equivalent to area-close, volume-basin or h-basin, respectively. This code may be difficult to understand because of its many options. Basically, when t is negative, the generalized dynamics: area, volume, h is computed. When the flooding is computed, every time a new level in the flooding happens, a test is made to verify if the criterion has reached. This is used to set the value to that height. This value image will be used later for sup-reconstruction (flooding) at that particular level. This test happens in the raising of the water and in the merging of basins.

See also

mmSebox Create a box structuring element.
mmSecross Diamond structuring element and elementary 3x3 cross.
mmAreaclose Area closing
mmHmin Remove basins with contrast less than h.
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