[mmhmin] [Up] [mmhmax] Connected Operators

mmvmax
Remove domes with volume less than v.

Synopsis

y = mmvmax( f, v = 1, Bc = None )

Implemented in Python.

Input

f Image Gray-scale (uint8 or uint16) image.

Double

Volume parameter.

Default: 1

Structuring Element

Structuring element (connectivity).

Default: None (3x3 elementary cross)

Output

y	Image Gray-scale (uint8 or uint16) or binary image.

Description

mmvmax This operator removes connected domes with volume less than v. This function is very similar to mmhmax, but instead of using a gray scale criterion (contrast) for the dome, it uses a volume criterion.

Examples

Numerical example:

>>> a = uint8([
    [4,  3,  6,  1,  3,  5,  2],
    [2,  9,  6,  1,  6,  7,  3],
    [8,  9,  3,  2,  4,  9,  4],
    [3,  1,  2,  1,  2,  4,  2]])

>>> print mmvmax(a,10,mmsebox())

[[4 3 6 1 3 5 2]
 [2 6 6 1 5 5 3]
 [6 6 3 2 4 5 4]
 [3 1 2 1 2 4 2]]

Signal example:

Image example:

>>> f = mmreadgray('astablet.tif')

>>> mmshow(f)

>>> fb = mmvmax(f,80000)

>>> mmshow(fb)

>>> mmshow(mmregmax(fb))


f	fb


mmregmax(fb)

Source Code
        def mmvmax(f, v=1, Bc=None):
    if Bc is None: Bc = mmsecross()
    print 'Not implemented yet'
    return None
    return y
    
      

mmsebox	Create a box structuring element.
mmsecross	Diamond structuring element and elementary 3x3 cross.
mmfreedom	Control automatic data type conversion.
mmhmin	Remove basins with contrast less than h.
mmareaopen	Area opening

[`mmhmin`] [Up] [`mmhmax`]
Copyright (c) 2003, Roberto A. Lotufo, UNICAMP-University of Campinas; Rubens C. Machado, CenPRA-Renato Archer Research Center.

mmvmax Remove domes with volume less than v.