def blackTopHat(imIn, imOut, n, se=mamba.DEFAULT_SE):
"""
Performs a black Top Hat operation on 'imIn' and puts the result in 'imOut'.
This operator extracts from 'imIn' the dark objects thinner than 2*'n'+1.
The structuring element used is defined by 'se' ('DEFAULT_SE' by default).
"""
imWrk = mamba.imageMb(imIn)
mamba.closing(imIn, imWrk, n, se=se)
mamba.sub(imWrk, imIn, imOut)
def alternateFilter(imIn, imOut,n, openFirst, se=mamba.DEFAULT_SE):
"""
Performs an alternate filter operation of size 'n' on image 'imIn' and puts
the result in 'imOut'. If 'openFirst' is True, the filter begins with an
opening, a closing otherwise.
"""
if openFirst:
mamba.opening(imIn, imOut, n, se=se)
mamba.closing(imOut, imOut, n, se=se)
else:
mamba.closing(imIn, imOut, n, se=se)
mamba.opening(imOut, imOut, n, se=se)
def fullAlternateFilter(imIn, imOut, n, openFirst, se=mamba.DEFAULT_SE):
"""
Performs a full alternate filter operation (successive alternate filters of
increasing sizes, from 1 to 'n') on image 'imIn' and puts the result
in 'imOut'. 'n' controls the filter size. If 'openFirst' is True, the filter
begins with an opening, a closing otherwise.
"""
mamba.copy(imIn, imOut)
for i in range(1,n+1):
if openFirst:
mamba.opening(imOut, imOut, i, se=se)
mamba.closing(imOut, imOut, i, se=se)
else:
mamba.closing(imOut, imOut, i, se=se)
mamba.opening(imOut, imOut, i, se=se)
