def hierarchicalLevel(imIn, imOut, grid=mamba.DEFAULT_GRID):
"""
Computes the next hierarchical level of image 'imIn' in the
waterfalls transformation and puts the result in 'imOut'.
This operation makes sure that the next hierarchical level is embedded
in the previous one.
'imIn' must be a valued watershed image.
"""
imWrk0 = mamba.imageMb(imIn)
imWrk1 = mamba.imageMb(imIn, 1)
imWrk2 = mamba.imageMb(imIn, 1)
imWrk3 = mamba.imageMb(imIn, 1)
imWrk4 = mamba.imageMb(imIn, 32)
mamba.threshold(imIn, imWrk1, 0, 0)
mamba.negate(imWrk1, imWrk2)
hierarchy(imIn, imWrk2, imWrk0, grid=grid)
mamba.minima(imWrk0, imWrk2, grid=grid)
mamba.label(imWrk2, imWrk4, grid=grid)
mamba.watershedSegment(imWrk0, imWrk4, grid=grid)
mamba.copyBytePlane(imWrk4, 3, imWrk0)
mamba.threshold(imWrk0, imWrk2, 0, 0)
mamba.diff(imWrk1, imWrk2, imWrk3)
mamba.build(imWrk1, imWrk3)
se = mamba.structuringElement(mamba.getDirections(grid), grid)
mamba.dilate(imWrk3, imWrk1, 1, se)
mamba.diff(imWrk2, imWrk1, imWrk1)
mamba.logic(imWrk1, imWrk3, imWrk1, "sup")
mamba.convertByMask(imWrk1, imWrk0, 255, 0)
mamba.logic(imIn, imWrk0, imOut, "inf")
def hierarchicalLevel(imIn, imOut, grid=mamba.DEFAULT_GRID):
"""
Computes the next hierarchical level of image 'imIn' in the
waterfalls transformation and puts the result in 'imOut'.
This operation makes sure that the next hierarchical level is embedded
in the previous one.
'imIn' must be a valued watershed image.
"""
imWrk0 = mamba.imageMb(imIn)
imWrk1 = mamba.imageMb(imIn, 1)
imWrk2 = mamba.imageMb(imIn, 1)
imWrk3 = mamba.imageMb(imIn, 1)
imWrk4 = mamba.imageMb(imIn, 32)
mamba.threshold(imIn,imWrk1, 0, 0)
mamba.negate(imWrk1, imWrk2)
hierarchy(imIn, imWrk2, imWrk0, grid=grid)
mamba.minima(imWrk0, imWrk2, grid=grid)
mamba.label(imWrk2, imWrk4, grid=grid)
mamba.watershedSegment(imWrk0, imWrk4, grid=grid)
mamba.copyBytePlane(imWrk4, 3, imWrk0)
mamba.threshold(imWrk0, imWrk2, 0, 0)
mamba.diff(imWrk1, imWrk2, imWrk3)
mamba.build(imWrk1, imWrk3)
se = mamba.structuringElement(mamba.getDirections(grid), grid)
mamba.dilate(imWrk3, imWrk1, 1, se)
mamba.diff(imWrk2, imWrk1, imWrk1)
mamba.logic(imWrk1, imWrk3, imWrk1, "sup")
mamba.convertByMask(imWrk1, imWrk0, 255, 0)
mamba.logic(imIn, imWrk0, imOut, "inf")
def mosaic(imIn, imOut, imWts, grid=mamba.DEFAULT_GRID):
"""
Builds the mosaic image of 'imIn' and puts the results into 'imOut'.
The watershed line (pixel values set to 255) is stored in the
greytone image 'imWts'. A mosaic image is a simple image made of various
tiles of uniform grey values. It is built using the watershed of 'imIn'
gradient and original markers made of gradient minima which are labelled by
the maximum value of 'imIn' pixels inside them.
"""
imWrk1 = mamba.imageMb(imIn, 1)
imWrk2 = mamba.imageMb(imIn)
mamba.copy(imIn, imWrk2)
im_mark = mamba.imageMb(imIn, 32)
se = mamba.structuringElement(mamba.getDirections(grid), grid)
mamba.gradient(imIn, imOut, se=se)
mamba.minima(imOut, imWrk1, grid=grid)
mamba.add(im_mark, imWrk1, im_mark)
imWrk1.convert(8)
mamba.build(imWrk1, imWrk2, grid=grid)
mamba.add(im_mark, imWrk2, im_mark)
watershedSegment(imOut, im_mark, grid=grid)
mamba.copyBytePlane(im_mark, 3, imWts)
mamba.subConst(im_mark, 1, im_mark)
mamba.copyBytePlane(im_mark, 0, imOut)
def mosaic(imIn, imOut, imWts, grid=mamba.DEFAULT_GRID):
"""
Builds the mosaic image of 'imIn' and puts the results into 'imOut'.
The watershed line (pixel values set to 255) is stored in the
greytone image 'imWts'. A mosaic image is a simple image made of various
tiles of uniform grey values. It is built using the watershed of 'imIn'
gradient and original markers made of gradient minima which are labelled by
the maximum value of 'imIn' pixels inside them.
"""
imWrk1 = mamba.imageMb(imIn, 1)
imWrk2 = mamba.imageMb(imIn)
mamba.copy(imIn, imWrk2)
im_mark = mamba.imageMb(imIn, 32)
se = mamba.structuringElement(mamba.getDirections(grid), grid)
mamba.gradient(imIn, imOut, se=se)
mamba.minima(imOut, imWrk1, grid=grid)
mamba.add(im_mark, imWrk1, im_mark)
imWrk1.convert(8)
mamba.build(imWrk1, imWrk2, grid=grid)
mamba.add(im_mark, imWrk2, im_mark)
watershedSegment(imOut, im_mark, grid=grid)
mamba.copyBytePlane(im_mark, 3, imWts)
mamba.subConst(im_mark, 1, im_mark)
mamba.copyBytePlane(im_mark, 0, imOut)
def valuedWatershed(imIn, imOut, grid=mamba.DEFAULT_GRID):
"""
Returns the valued watershed of greyscale image 'imIn' into greyscale image
'imOut'. Each pixel of the watershed lines is given its corresponding value
in initial image 'imIn'.
"""
im_min = mamba.imageMb(imIn, 1)
mamba.minima(imIn, im_min, grid=grid)
markerControlledWatershed(imIn, im_min, imOut, grid=grid)
def valuedWatershed(imIn, imOut, grid=mamba.DEFAULT_GRID):
"""
Returns the valued watershed of greyscale image 'imIn' into greyscale image
'imOut'. Each pixel of the watershed lines is given its corresponding value
in initial image 'imIn'.
"""
im_min = mamba.imageMb(imIn, 1)
mamba.minima(imIn, im_min, grid=grid)
markerControlledWatershed(imIn, im_min, imOut, grid=grid)
