[mmopentransf] [Up] [mmareaclose] Connected Operators

mmclohole
Close holes of binary and gray-scale images.

Synopsis

y = mmclohole( f, Bc = None )

Implemented in Python.

Input

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

Structuring Element

( connectivity).

Default: None (3x3 elementary cross)

Output

y	Image (same datatype of `f`).

Description

mmclohole creates the image y by closing the holes of the image f, according with the connectivity defined by the structuring element Bc.The images can be either binary or gray-scale.

Examples

Binary image:

>>> a = mmreadgray('pcb1bin.tif')

>>> b = mmclohole(a)

>>> mmshow(a)

>>> mmshow(b)


a	b

Gray-scale image:

>>> a = mmreadgray('boxdrill-B.tif')

>>> b = mmclohole(a)

>>> mmshow(a)

>>> mmshow(b)


a	b

Equation

Source Code
        def mmclohole(f, Bc=None):
    if Bc is None: Bc = mmsecross()
    delta_f = mmframe(f)
    y = mmneg( mminfrec( delta_f, mmneg(f), Bc))
    return y
    
      

mmfreedom	Control automatic data type conversion.
mminfrec	Inf-reconstruction.
mmframe	Create a frame image.
mmsecross	Diamond structuring element and elementary 3x3 cross.
mmareaclose	Area closing

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

mmclohole Close holes of binary and gray-scale images.