

BWTransform IMAGE [ lookup ] 
Applies 512byte lookup LUT string ( lookup table ) to image and returns
the convolution result ( hitandmiss transform). Each byte of lookup is a set
of bits, each corresponding to the 3x3 kernel index:
4 3 2 5 0 1 6 7 8 Thus, for example, the Xshape would be represented by offset 2**0 + 2**2 + 2**4 + 2**6 + 2**8 = 341 . The byte value, corresponding to the offset in lookup string is stored in the output image. IPA::Morphology defines several basic LUT transforms, which can be invoked by the following code:
IPA::Morphological::bw_METHOD( $image); or its alternative
IPA::Morphology::BWTransform( $image, lookup => $IPA::Morphology::transform_luts{METHOD}>()); Where METHOD is one of the following string constants:
Supported types: Byte  
dilate IMAGE [ neighborhood = 8 ] 
Performs morphological dilation operation on IMAGE and returns the result.
neighborhood determines whether the algorithm assumes 4 or 8 pixel connectivity.
Supported types: Byte, Short, Long, Float, Double  
erode IMAGE [ neighborhood = 8 ] 
Performs morphological erosion operation on IMAGE and returns the result.
neighborhood determines whether the algorithm assumes 4 or 8 pixel connectivity.
Supported types: Byte, Short, Long, Float, Double  
opening IMAGE [ neighborhood = 8 ] 
Performs morphological opening operation on IMAGE and returns the result.
neighborhood determines whether the algorithm assumes 4 or 8 pixel connectivity.
Supported types: Byte, Short, Long, Float, Double  
closing IMAGE [ neighborhood = 8 ] 
Performs morphological closing operation on IMAGE and returns the result.
neighborhood determines whether the algorithm assumes 4 or 8 pixel connectivity.
Supported types: Byte, Short, Long, Float, Double  
gradient IMAGE [ neighborhood = 8 ] 
Returns the result or the morphological gradient operator on IMAGE.
neighborhood determines whether the algorithm assumes 4 or 8 pixel connectivity.
Supported types: Byte, Short, Long, Float, Double  
algebraic_difference IMAGE1, IMAGE2 [ inPlace = 0 ] 
Performs the algebraic difference between IMAGE1 and IMAGE2.
Although this is not a morphological operator, it is often used is
conjunction with ones. If the boolean flag inPlace is set,
IMAGE1 contains the result.
Supported types: Byte, Short, Long, Float, Double  
watershed IMAGE [ neighborhood = 4 ] 
Applies the watershed segmentation to IMAGE with given neighborhood.
Supported types: Byte  
reconstruct IMAGE1, IMAGE2 [ neighborhood = 8, inPlace = 0 ] 
Performs morphological reconstruction of IMAGE1 under the mask IMAGE2. Images can be two
intensity images or two binary images with the same size. The returned image, is an intensity
or binary image, respectively.
If boolean inPlace flag is set, IMAGE2 contains the result. neighborhood determines whether the algorithm assumes 4 or 8 pixel connectivity. Supported types: Byte, Short, Long, Float, Double  
thinning IMAGE 
Applies the skeletonization algorithm, returning image with binary object maximal
euclidian distance points set.
Supported types: Byte  
perl v5.20.3  MORPHOLOGY::MORPHOLOGY (3)  20110508 
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