[mmasf] [Up] [mmopen] Morphological Filters

mmclose
Morphological closing.

Synopsis

y = mmclose( f, b = None )

Implemented in Python.

Input

f	Image Gray-scale (uint8 or uint16) or binary image.
b	Structuring Element Default: `None` (3x3 elementary cross)

Output

Image

Description

mmclose creates the image y by the morphological closing of the image f by the structuring element b. In the binary case, the closing by a structuring element B may be interpreted as the intersection of all the binary images that contain the image f and have a hole equal to a translation of B. In the gray-scale case, there is a similar interpretation taking the functions umbra.

Examples

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

>>> bimg=mmreadgray('blob1.tif')

>>> b=mmimg2se(bimg)

>>> mmshow(f)

>>> mmshow(mmclose(f,b))

>>> mmshow(mmclose(f,b),mmgradm(f))


f	mmclose(f,b)


mmclose(f,b),mmgradm(f)

>>> f = mmreadgray('form-1.tif')

>>> mmshow(f)

>>> y = mmclose(f,mmsedisk(4))

>>> mmshow(y)


f	y

>>> f = mmreadgray('n2538.tif')

>>> mmshow(f)

>>> y = mmclose(f,mmsedisk(3))

>>> mmshow(y)


f	y

Equation

Source Code
        def mmclose(f, b=None):
    if b is None: b = mmsecross()
    y = mmero(mmdil(f,b),b)
    return y
    
      

mmopen	Morphological opening.
mmfreedom	Control automatic data type conversion.
mmsebox	Create a box structuring element.
mmsecross	Diamond structuring element and elementary 3x3 cross.
mmimg2se	Create a structuring element from a pair of images.
mmsesum	N-1 iterative Minkowski additions

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

mmclose Morphological closing.