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mmopenth
Opening Top Hat.

Synopsis

y = mmopenth( f, b = None )

Implemented in Python.

Input

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

structuring element

Default: None (3x3 elementary cross)

Output

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

(same type of f).

Description

mmopenth creates the image y by subtracting the morphological opening of f by the structuring element b of f itself.

Examples

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

              
>>> mmshow(a)

              
>>> b = mmopenth(a,mmsebox(3))

              
>>> mmshow(b)

            
a b

Equation

Source Code

def mmopenth(f, b=None):
    if b is None: b = mmsecross()
    y = mmsubm(f, mmopen(f,b))
    return y
    

See also

mmfreedom Control automatic data type conversion.
mmcloseth Closing Top Hat.
mmopenrecth Open-by-Reconstruction Top-Hat.
mmgradm Morphological gradient.
mmopen Morphological opening.
[mmopenrecth] [Up] [mmskelm] Python