Equation
Flat structuring element:
Non-flat structuring element:
| [mmunion] [Up] [mmsebox] | Structuring Elements |
Implemented in Python.
mmimg2se creates a flat structuring element
B from the binary image
fd or creates a non-flat structuring element
b from the binary image
fd and the gray-scale image
f.
fd represents the domain of
b and
f represents the image of the points in
fd.
Let us apply
mmimg2se to create structuring elements. In the example below, the flat 3x3 diamond is created.
>>> a = mmimg2se(mmbinary([ [0,1,0], [1,1,1], [0,1,0]]))
>>> print mmseshow(a)
[[0 1 0] [1 1 1] [0 1 0]]
>>> b = mmbinary([ [0,1,1,1], [1,1,1,0]])
>>> b1 = mmimg2se(b)
>>> print mmseshow(b1)
[[0 0 0 0 0] [0 0 1 1 1] [0 1 1 1 0]]
>>> c = mmbinary([ [0,1,0], [1,1,1], [0,1,0]])
>>> d = int32([ [0,0,0], [0,1,0], [0,0,0]])
>>> e = mmimg2se(c,'NON-FLAT',d)
>>> print mmseshow(e)
[[-2147483647 0 -2147483647] [ 0 1 0] [-2147483647 0 -2147483647]]
def mmimg2se(fd, FLAT="FLAT", f=None):
from string import upper
from Numeric import choose, ones
assert mmisbinary(fd),'First parameter must be binary'
FLAT = upper(FLAT)
if FLAT == 'FLAT':
return mmseshow(fd)
else:
B = choose(fd, (mmlimits(int32([0]))[0]*ones(fd.shape),f) )
B = mmseshow(int32(B),'NON-FLAT')
return B
| mmfreedom | Control automatic data type conversion. |
| mmsebox | Create a box structuring element. |
| mmsecross | Diamond structuring element and elementary 3x3 cross. |
| mmsedisk | Create a disk or a semi-sphere structuring element. |
| mmseline | Create a line structuring element. |
| mmseshow | Display a structuring element as an image. |
| mmdil | Dilate an image by a structuring element. |
| [mmunion] [Up] [mmsebox] |  |
| Copyright (c) 2003, Roberto A. Lotufo, UNICAMP-University of Campinas; Rubens C. Machado, CenPRA-Renato Archer Research Center. |