[mmsupcanon] [Up] [mmcthick] Sup-generating And Inf-generating

mmsupgen
Sup-generating (hit-miss).

Synopsis

y = mmsupgen( f, INTER )

Implemented in Python.

Input

f	Image Binary image.
INTER	Interval

Output

y	Image Binary image.

Description

mmsupgen creates the binary image y by computing the transformation of the image f by the sup-generating operator characterized by the interval Iab. The sup-generating operator is just a relaxed template matching, where the criterion to keep a shape is that it be inside the interval Iab. Note that we have the classical template matching when a=b. Note yet that the sup-generating operator is equivalent to the classical hit-miss operator.

Examples

Numerical example:

>>> f=mmbinary([
   [0,0,1,0,0,1,1],
   [0,1,0,0,1,0,0],
   [0,0,0,1,1,0,0]])

>>> i=mmendpoints()

>>> print mmintershow(i)

. . . 
0 1 0 
0 0 0

>>> g=mmsupgen(f,i)

>>> print g

[[0 0 0 0 0 0 0]
 [0 1 0 0 0 0 0]
 [0 0 0 0 0 0 0]]

Image example

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

>>> b=mmsupgen(a,mmendpoints())

>>> mmshow(a)

>>> mmshow(mmdil(b))


a	mmdil(b)

Equation

Source Code
        def mmsupgen(f, INTER):
    A,Bc = INTER
    y = mmintersec(mmero( f, A),
                   mmero( mmneg(f), Bc))
    return y
    
      

mmfreedom	Control automatic data type conversion.
mminfgen	Inf-generating.
mmintershow	Visualize an interval.
mmse2hmt	Create a Hit-or-Miss Template (or interval) from a pair of structuring elements.
mmendpoints	Interval to detect end-points.
mmhomothick	Interval for homotopic thickening.
mmhomothin	Interval for homotopic thinning.
mmsupcanon	Union of sup-generating or hit-miss operators.

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

mmsupgen Sup-generating (hit-miss).