def test_3d_fallback_white_tophat():
image = np.zeros((7, 7, 7), dtype=bool)
image[2, 2:4, 2:4] = 1
image[3, 2:5, 2:5] = 1
image[4, 3:5, 3:5] = 1
new_image = grey.white_tophat(image)
footprint = ndimage.generate_binary_structure(3,1)
image_expected = ndimage.white_tophat(image,footprint=footprint)
testing.assert_array_equal(new_image, image_expected)
def test_3d_fallback_white_tophat():
image = np.zeros((7, 7, 7), dtype=bool)
image[2, 2:4, 2:4] = 1
image[3, 2:5, 2:5] = 1
image[4, 3:5, 3:5] = 1
with expected_warnings(['operator.*deprecated|\A\Z']):
new_image = grey.white_tophat(image)
footprint = ndi.generate_binary_structure(3,1)
with expected_warnings(['operator.*deprecated|\A\Z']):
image_expected = ndi.white_tophat(image,footprint=footprint)
testing.assert_array_equal(new_image, image_expected)
def topHat(data, factor):
'''
data -- numpy array
pntFactor determines how finely the filter is applied to data.
A point factor of 0.01 is appropriate for the tophat filter of Bruker MALDI mass spectra.
A smaller number is faster but a trade-off is imposed
'''
pntFactor = factor
struct_pts = int(round(data.size*pntFactor))
str_el = N.repeat([1], struct_pts)
tFil = ndimage.white_tophat(data, None, str_el)
return tFil
def white_tophat(image, selem=None, out=None):
"""Return white top hat of an image.
The white top hat of an image is defined as the image minus its
morphological opening. This operation returns the bright spots of the image
that are smaller than the structuring element.
Parameters
----------
image : ndarray
Image array.
selem : ndarray, optional
The neighborhood expressed as an array of 1's and 0's.
If None, use cross-shaped structuring element (connectivity=1).
out : ndarray, optional
The array to store the result of the morphology. If None
is passed, a new array will be allocated.
Returns
-------
out : array, same shape and type as `image`
The result of the morphological white top hat.
Examples
--------
>>> # Subtract grey background from bright peak
>>> import numpy as np
>>> from skimage.morphology import square
>>> bright_on_grey = np.array([[2, 3, 3, 3, 2],
... [3, 4, 5, 4, 3],
... [3, 5, 9, 5, 3],
... [3, 4, 5, 4, 3],
... [2, 3, 3, 3, 2]], dtype=np.uint8)
>>> white_tophat(bright_on_grey, square(3))
array([[0, 0, 0, 0, 0],
[0, 0, 1, 0, 0],
[0, 1, 5, 1, 0],
[0, 0, 1, 0, 0],
[0, 0, 0, 0, 0]], dtype=uint8)
"""
selem = np.array(selem)
if out is image:
opened = opening(image, selem)
out -= opened
return out
elif out is None:
out = np.empty_like(image)
out = ndi.white_tophat(image, footprint=selem, output=out)
return out
def normalize_baseline( raw, medwinsize=399, savgol_size=11, savgol_order=5,
tophat_factor = 0.01 ):
"""
params.medwin_size
params.savgol_order
params.savgol_size
"""
median_line = signal.medfilt(raw, [medwinsize])
baseline = signal.savgol_filter( median_line, medwinsize, savgol_order)
corrected_baseline = raw - baseline
np.maximum(corrected_baseline, 0, out=corrected_baseline)
savgol = signal.savgol_filter(corrected_baseline, savgol_size, savgol_order)
smooth = ndimage.white_tophat(savgol, None,
np.repeat([1], int(round(raw.size * tophat_factor))))
return NormalizedTrace( signal=smooth, baseline = baseline )
def tophat(ic, struct=None):
"""
@summary: Top-hat baseline correction on Ion Chromatogram
@param ic: The input ion chromatogram
@type ic: pyms.GCMS.Class.IonChromatogram
@param struct: Top-hat structural element as time string
@type struct: StringType
@return: Top-hat corrected ion chromatogram
@rtype: pyms.IO.Class.IonChromatogram
@author: Woon Wai Keen
@author: Vladimir Likic
"""
if not is_ionchromatogram(ic):
error("'ic' not an IonChromatogram object")
else:
ia = copy.deepcopy(ic.get_intensity_array())
if struct == None:
struct_pts = int(round(ia.size * _STRUCT_ELM_FRAC))
else:
struct_pts = ic_window_points(ic, struct)
# print " -> Top-hat: structural element is %d point(s)" % ( struct_pts )
str_el = numpy.repeat([1], struct_pts)
ia = ndimage.white_tophat(ia, None, str_el)
ic_bc = copy.deepcopy(ic)
ic_bc.set_intensity_array(ia)
return ic_bc
def tophat(ic, struct=None):
"""
Top-hat baseline correction on Ion Chromatogram
:param ic: The input ion chromatogram
:type ic: pyms.IonChromatogram.IonChromatogram
:param struct: Top-hat structural element as time string
:type struct: int or str or NoneType, optional
:return: Top-hat corrected ion chromatogram
:rtype: pyms.IonChromatogram.IonChromatogram
:author: Woon Wai Keen
:author: Vladimir Likic
:author: Dominic Davis-Foster (type assertions)
"""
if not isinstance(ic, IonChromatogram):
raise TypeError("'ic' must be an IonChromatogram object")
ia = copy.deepcopy(ic.intensity_array)
if struct:
struct_pts = ic_window_points(ic, struct)
else:
struct_pts = int(round(ia.size * _STRUCT_ELM_FRAC))
# print(" -> Top-hat: structural element is %d point(s)" % ( struct_pts ))
str_el = numpy.repeat([1], struct_pts)
ia = ndimage.white_tophat(ia, footprint=str_el)
ic_bc = copy.deepcopy(ic)
ic_bc.intensity_array = ia
return ic_bc
# images, label = Parallel(n_jobs = num_cores)(delayed(create)(j) for j in range (5))))
# images_info.append(images)
# labels_info.app
for j in range(len(image_list)):
temp_name = image_list[j]
info = [index, temp_name]
info_im.append(info)
img = Image.open(in_dir + str(i + 1) + '/' + temp_name).convert('L')
img.save(out_dir + 'COCO_val2014_' + str(index + num)[1:] + '.jpg',
'jpeg')
img = np.array(img)
print img.shape, 'de: ', temp_name
# pdb.set_trace()
tophat = ndi.white_tophat(img, 5)
otsu = threshold_otsu(tophat)
mask = (img > otsu).astype(np.uint8)
im2, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
cnt = contours[0]
M = cv2.moments(cnt)
x, y, w, h = cv2.boundingRect(cnt)
segmentation = []
area = cv2.contourArea(contours[0])
for contour in contours:
contour = contour.flatten().tolist()
segmentation.append(contour)
def white_tophat(image, footprint=None, out=None):
"""Return white top hat of an image.
The white top hat of an image is defined as the image minus its
morphological opening. This operation returns the bright spots of the image
that are smaller than the footprint.
Parameters
----------
image : ndarray
Image array.
footprint : ndarray, optional
The neighborhood expressed as an array of 1's and 0's.
If None, use cross-shaped footprint (connectivity=1). This can also
be a sequence of 2-tuples where the first element of each 2-tuple is a
footprint and the second element as an integer describing the number of
times it should be iterated.
out : ndarray, optional
The array to store the result of the morphology. If None
is passed, a new array will be allocated.
Returns
-------
out : array, same shape and type as `image`
The result of the morphological white top hat.
See Also
--------
black_tophat
References
----------
.. [1] https://en.wikipedia.org/wiki/Top-hat_transform
Examples
--------
>>> # Subtract gray background from bright peak
>>> import numpy as np
>>> from skimage.morphology import square
>>> bright_on_gray = np.array([[2, 3, 3, 3, 2],
... [3, 4, 5, 4, 3],
... [3, 5, 9, 5, 3],
... [3, 4, 5, 4, 3],
... [2, 3, 3, 3, 2]], dtype=np.uint8)
>>> white_tophat(bright_on_gray, square(3))
array([[0, 0, 0, 0, 0],
[0, 0, 1, 0, 0],
[0, 1, 5, 1, 0],
[0, 0, 1, 0, 0],
[0, 0, 0, 0, 0]], dtype=uint8)
"""
if out is image:
opened = opening(image, footprint)
if np.issubdtype(opened.dtype, bool):
np.logical_xor(out, opened, out=out)
else:
out -= opened
return out
elif out is None:
out = np.empty_like(image)
# promote bool to a type that allows arithmetic operations
if isinstance(image, np.ndarray) and image.dtype == bool:
image_ = image.view(dtype=np.uint8)
else:
image_ = image
if isinstance(out, np.ndarray) and out.dtype == bool:
out_ = out.view(dtype=np.uint8)
else:
out_ = out
if _footprint_is_sequence(footprint):
return _white_tophat_seqence(image_, footprint, out_)
footprint = np.array(footprint)
out_ = ndi.white_tophat(image_, footprint=footprint, output=out_)
return out
output = vc.white_tophat(input_var,
make_float32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("vc white_tophat: ", (t.time() - start_time), " sec")
print("\nwhite_tophat VoxelProcessing Default")
start_time = t.time()
d = ndimage.white_tophat(input_var,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("scipy white_tophat: ", (t.time() - start_time), " sec")
print("\nresult: ", (d == output).all())
#16.multiply..............
print("\nmultiply VoxelProcessing")
start_time = t.time()
output = vc.multiply(input_var,
make_float32=False,
no_of_blocks=7,
fakeghost=2,
scalar=10)
print("vc multiply: ", (t.time() - start_time), " sec")
def correct_baseline( signal ):
""" use tophat morphological transform to correct for baseline """
return ndimage.white_tophat(signal, None,
np.repeat([1], int(round(signal.size * _TOPHAT_FACTOR)))
)
def y_shift_by_mask_sliding(top_bottom_image, bottom_top_image):
scores = top_bottom_to_slide_scores(top_bottom_image, bottom_top_image)
if np.max(scores) < 0:
return 0
scores = ndimage.white_tophat(scores, structure=np.ones((6)))
return np.argmax(scores)
def __operationTask(self, input):
D = self.__operationArgumentDic
#self.M.add_mem()#.....................................................................................................
if self.__operation == "binary_closing":
return ndimage.binary_closing(input,
structure=D["structure"],
iterations=D["iterations"],
output=D["output"],
origin=D["origin"],
mask=D["mask"],
border_value=D["border_value"],
brute_force=D["brute_force"])
elif self.__operation == "binary_dilation":
return ndimage.binary_dilation(input,
structure=D["structure"],
iterations=D["iterations"],
output=D["output"],
origin=D["origin"],
mask=D["mask"],
border_value=D["border_value"],
brute_force=D["brute_force"])
elif self.__operation == "binary_erosion":
return ndimage.binary_erosion(input,
structure=D["structure"],
iterations=D["iterations"],
output=D["output"],
origin=D["origin"],
mask=D["mask"],
border_value=D["border_value"],
brute_force=D["brute_force"])
elif self.__operation == "binary_fill_holes":
return ndimage.binary_fill_holes(input,
structure=D["structure"],
output=D["output"],
origin=D["origin"])
elif self.__operation == "binary_hit_or_miss":
return ndimage.binary_hit_or_miss(input,
structure1=D["structure1"],
structure2=D["structure2"],
output=D["output"],
origin1=D["origin1"],
origin2=D["origin2"])
elif self.__operation == "binary_opening":
return ndimage.binary_opening(input,
structure=D["structure"],
iterations=D["iterations"],
output=D["output"],
origin=D["origin"],
mask=D["mask"],
border_value=D["border_value"],
brute_force=D["brute_force"])
elif self.__operation == "binary_propagation":
return ndimage.binary_propagation(input,
structure=D["structure"],
output=D["output"],
origin=D["origin"],
mask=D["mask"],
border_value=D["border_value"])
elif self.__operation == "black_tophat":
return ndimage.black_tophat(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
origin=D["origin"],
mode=D["mode"],
cval=D["cval"])
elif self.__operation == "grey_dilation":
return ndimage.grey_dilation(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
mode=D["mode"],
cval=D["cval"],
origin=D["origin"])
elif self.__operation == "grey_closing":
return ndimage.grey_closing(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
origin=D["origin"],
mode=D["mode"],
cval=D["cval"])
elif self.__operation == "grey_erosion":
return ndimage.grey_erosion(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
origin=D["origin"],
mode=D["mode"],
cval=D["cval"])
elif self.__operation == "grey_opening":
return ndimage.grey_opening(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
origin=D["origin"],
mode=D["mode"],
cval=D["cval"])
elif self.__operation == "morphological_gradient":
return ndimage.morphological_gradient(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
origin=D["origin"],
mode=D["mode"],
cval=D["cval"])
elif self.__operation == "morphological_laplace":
return ndimage.morphological_laplace(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
origin=D["origin"],
mode=D["mode"],
cval=D["cval"])
elif self.__operation == "white_tophat":
return ndimage.white_tophat(input,
structure=D["structure"],
size=D["size"],
footprint=D["footprint"],
output=D["output"],
origin=D["origin"],
mode=D["mode"],
cval=D["cval"])
elif self.__operation == "intMultiply":
return input * D["scalar"]
else:
return input
def correct_baseline( signal ):
""" use tophat morphological transform to correct for baseline """
return ndimage.white_tophat(signal, None,
np.repeat([1], int(round(signal.size * _TOPHAT_FACTOR)))
)
print("Erosion CPU: " + str(end - start))
print("Difference: " + str(cp.sum(cp.asnumpy(out) != out_cpu)))
plt.imshow(cp.asnumpy(out), cmap='gray', vmin=0, vmax=255)
plt.show()
plt.imshow(out_cpu, cmap='gray', vmin=0, vmax=255)
plt.show()
start = timer()
out = grey_dilation_cuda(image, p)
end = timer()
print("Dilation GPU: " + str(end - start))
start = timer()
out_cpu = grey_dilation(cp.asnumpy(image), [p, p])
end = timer()
print("Dilation CPU: " + str(end - start))
print("Difference: " + str(cp.sum(cp.asnumpy(out) != out_cpu)))
start = timer()
[NWTH, NBTH] = grey_top_hat_cuda(image, p)
end = timer()
print("Top-hat GPU: " + str(end - start))
start = timer()
NWTH_cpu = white_tophat(cp.asnumpy(image), structure=np.zeros([p, p]))
NBTH_cpu = black_tophat(cp.asnumpy(image), structure=np.zeros([p, p]))
end = timer()
print("Top-hat CPU: " + str(end - start))
print("Difference: " + str(cp.sum(cp.asnumpy(out) != out_cpu)))
def tophat(self, x, window):
str_el = np.repeat([1], window)
return ndimage.white_tophat(x, None, str_el)
def main():
structure = np.ones((3, 3, 3))
#.............test1. dense.......
filename = 'gyroidUniform.npy'
input = np.load(filename, mmap_mode="r")
print(
"..............................dense.............................................."
)
#0.Nothing..............
print("\n nothing testing...")
output = vc.nothing(input, blockSize=50, fakeGhost=4, makeFloat32=False)
print("\nresult: ", (input == output).all())
print(output.dtype, input.dtype)
#1.grey_dilation..............
print("\ngrey_dilation VoxelProcessind")
output = vc.grey_dilation(input, structure=structure, makeFloat32=False)
print("\ngrey_dilation Default")
d = ndimage.grey_dilation(input, structure=structure)
print("\nresult: ", (d == output).all())
print(output.dtype, input.dtype)
#2.grey_erosion..............
print("\ngrey_erosion VoxelProcessind")
output = vc.grey_erosion(input,
makeFloat32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\ngrey_erosion Default")
d = ndimage.grey_erosion(input,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nresult: ", (d == output).all())
#3.grey_closing..............
print("\ngrey_closing VoxelProcessind")
output = vc.grey_closing(input,
makeFloat32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\ngrey_closing Default")
d = ndimage.grey_closing(input,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nresult: ", (d == output).all())
print(output.dtype, input.dtype)
#4.grey_opening..............
print("\ngrey_opening VoxelProcessind")
output = vc.grey_opening(input,
makeFloat32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\ngrey_opening Default")
d = ndimage.grey_opening(input,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nresult: ", (d == output).all())
#5.binary_closing..............
print("\nbinary_closing VoxelProcessind")
output = vc.binary_closing(input,
makeFloat32=False,
structure=None,
iterations=1,
output=None,
origin=0,
mask=None,
border_value=0,
brute_force=False)
print("\nbinary_closing Default")
d = ndimage.binary_closing(input,
structure=None,
iterations=1,
output=None,
origin=0,
mask=None,
border_value=0,
brute_force=False)
print("\nresult: ", (d == output).all())
print(output[151][151][151])
#6.binary_opening..............
print("\nbinary_opening VoxelProcessind")
output = vc.binary_opening(input,
structure=None,
iterations=1,
output=None,
origin=0,
mask=None,
border_value=0,
brute_force=False)
print("\nbinary_opening Default")
d = ndimage.binary_opening(input,
structure=None,
iterations=1,
output=None,
origin=0,
mask=None,
border_value=0,
brute_force=False)
print("\nresult: ", (d == output).all())
#7.binary_dilation..............
print("\nbinary_dilation VoxelProcessind")
output = vc.binary_dilation(input,
makeFloat32=False,
structure=structure,
iterations=1,
mask=None,
output=None,
border_value=0,
origin=0,
brute_force=False)
print("\nbinary_dilation Default")
d = ndimage.binary_dilation(input,
structure=structure,
iterations=1,
mask=None,
output=None,
border_value=0,
origin=0,
brute_force=False)
print("\nresult: ", (d == output).all())
#8.binary_erosion..............
print("\nbinary_erosion VoxelProcessind")
output = vc.binary_erosion(input,
makeFloat32=False,
structure=None,
iterations=1,
mask=None,
output=None,
border_value=0,
origin=0,
brute_force=False)
print("\nbinary_erosion Default")
d = ndimage.binary_erosion(input,
structure=None,
iterations=1,
mask=None,
output=None,
border_value=0,
origin=0,
brute_force=False)
print("\nresult: ", (d == output).all())
#9.binary_fill_holes..............
print("\nbinary_fill_holes VoxelProcessind")
output = vc.binary_fill_holes(input,
makeFloat32=False,
structure=None,
output=None,
origin=0)
print("\nbinary_fill_holes Default")
d = ndimage.binary_fill_holes(input, structure=None, output=None, origin=0)
print("\nresult: ", (d == output).all())
#10.binary_hit_or_miss..............
print("\nbinary_hit_or_miss VoxelProcessind")
output = vc.binary_hit_or_miss(input,
makeFloat32=False,
structure1=None,
structure2=None,
output=None,
origin1=0,
origin2=None)
print("\nbinary_hit_or_miss Default")
d = ndimage.binary_hit_or_miss(input,
structure1=None,
structure2=None,
output=None,
origin1=0,
origin2=None)
print("\nresult: ", (d == output).all())
#11.binary_propagation..............
print("\nbinary_propagation VoxelProcessind")
output = vc.binary_propagation(input,
makeFloat32=False,
structure=None,
mask=None,
output=None,
border_value=0,
origin=0)
print("\nbinary_propagation Default")
d = ndimage.binary_propagation(input,
structure=None,
mask=None,
output=None,
border_value=0,
origin=0)
print("\nresult: ", (d == output).all())
#12.black_tophat..............
print("\nblack_tophat VoxelProcessind")
output = vc.black_tophat(input,
makeFloat32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nblack_tophat Default")
d = ndimage.black_tophat(input,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nresult: ", (d == output).all())
#13.morphological_gradient..............
print("\nmorphological_gradient VoxelProcessind")
output = vc.morphological_gradient(input,
makeFloat32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nmorphological_gradient Default")
d = ndimage.morphological_gradient(input,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nresult: ", (d == output).all())
#14.morphological_laplace..............
print("\nmorphological_laplace VoxelProcessind")
output = vc.morphological_laplace(input,
makeFloat32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nmorphological_laplace Default")
d = ndimage.morphological_laplace(input,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nresult: ", (d == output).all())
#15.white_tophat..............
print("\nwhite_tophat VoxelProcessind")
output = vc.white_tophat(input,
makeFloat32=False,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nwhite_tophat VoxelProcessind Default")
d = ndimage.white_tophat(input,
size=None,
footprint=None,
structure=structure,
output=None,
mode='reflect',
cval=0.0,
origin=0)
print("\nresult: ", (d == output).all())
#16.intMultiply..............
print("\nintMultiply VoxelProcessind")
output = vc.intMultiply(input,
makeFloat32=False,
blockSize=50,
fakeGhost=1,
scalar=10)
print("\nintMultiply Default")
d = input * 10
print("\nresult: ", (d == output).all())
print(
"..............................Sparse.............................................."
)
input = random(400, 80000, density=0.3, dtype="float64")
input = input.todense()
input = np.array(input)
input = np.reshape(input, (400, 200, 400))
#0.Nothing..............
print("\n nothing testing...")
output = vc.nothing(input, makeFloat32=False)
print("\nresult: ", (input == output).all())
print(output.dtype, input.dtype)
#1.grey_dilation..............
print("\ngrey_dilation VoxelProcessind")
output = vc.grey_dilation(input, structure=structure, makeFloat32=False)
print("\ngrey_dilation Default")
d = ndimage.grey_dilation(input, structure=structure)
print("\nresult: ", (d == output).all())
print(output.dtype, input.dtype)
#2.grey_erosion..............
print("\ngrey_erosion VoxelProcessind")
output = vc.grey_erosion(input, makeFloat32=False, structure=structure)
print("\ngrey_erosion Default")
d = ndimage.grey_erosion(input, structure=structure)
print("\nresult: ", (d == output).all())
#3.grey_closing..............
print("\ngrey_closing VoxelProcessind")
output = vc.grey_closing(input, makeFloat32=False, structure=structure)
print("\ngrey_closing Default")
d = ndimage.grey_closing(input, structure=structure)
print("\nresult: ", (d == output).all())
print(output.dtype, input.dtype)
#4.grey_opening..............
print("\ngrey_opening VoxelProcessind")
output = vc.grey_opening(input, makeFloat32=False, structure=structure)
print("\ngrey_opening Default")
d = ndimage.grey_opening(input, structure=structure)
print("\nresult: ", (d == output).all())
#5.binary_closing..............
print("\nbinary_closing VoxelProcessind")
output = vc.binary_closing(input, makeFloat32=False)
print("\nbinary_closing Default")
d = ndimage.binary_closing(input)
print("\nresult: ", (d == output).all())
#6.binary_opening..............
print("\nbinary_opening VoxelProcessind")
output = vc.binary_opening(input, makeFloat32=False)
print("\nbinary_opening Default")
d = ndimage.binary_opening(input)
print("\nresult: ", (d == output).all())
#7.binary_dilation..............
print("\nbinary_dilation VoxelProcessind")
output = vc.binary_dilation(input, makeFloat32=False, structure=structure)
print("\nbinary_dilation Default")
d = ndimage.binary_dilation(input, structure=structure)
print("\nresult: ", (d == output).all())
#8.binary_erosion..............
print("\nbinary_erosion VoxelProcessind")
output = vc.binary_erosion(input, makeFloat32=False)
print("\nbinary_erosion Default")
d = ndimage.binary_erosion(input)
print("\nresult: ", (d == output).all())
#9.binary_fill_holes..............
print("\nbinary_fill_holes VoxelProcessind")
output = vc.binary_fill_holes(input, makeFloat32=False)
print("\nbinary_fill_holes Default")
d = ndimage.binary_fill_holes(input)
print("\nresult: ", (d == output).all())
#10.binary_hit_or_miss..............
print("\nbinary_hit_or_miss VoxelProcessind")
output = vc.binary_hit_or_miss(input, makeFloat32=False)
print("\nbinary_hit_or_miss Default")
d = ndimage.binary_hit_or_miss(input)
print("\nresult: ", (d == output).all())
#11.binary_propagation..............
print("\nbinary_propagation VoxelProcessind")
output = vc.binary_propagation(input, makeFloat32=False)
print("\nbinary_propagation Default")
d = ndimage.binary_propagation(input)
print("\nresult: ", (d == output).all())
#12.black_tophat..............
print("\nblack_tophat VoxelProcessind")
output = vc.black_tophat(input, makeFloat32=False, structure=structure)
print("\nblack_tophat Default")
d = ndimage.black_tophat(input, structure=structure)
print("\nresult: ", (d == output).all())
#13.morphological_gradient..............
print("\nmorphological_gradient VoxelProcessind")
output = vc.morphological_gradient(
input,
structure=structure,
makeFloat32=False,
)
print("\nmorphological_gradient Default")
d = ndimage.morphological_gradient(input, structure=structure)
print("\nresult: ", (d == output).all())
#14.morphological_laplace..............
print("\nmorphological_laplace VoxelProcessind")
output = vc.morphological_laplace(input,
structure=structure,
makeFloat32=False)
print("\nmorphological_laplace Default")
d = ndimage.morphological_laplace(input, structure=structure)
print("\nresult: ", (d == output).all())
#15.white_tophat..............
print("\nwhite_tophat VoxelProcessind")
output = vc.white_tophat(input, makeFloat32=False, structure=structure)
print("\nwhite_tophat VoxelProcessind Default")
d = ndimage.white_tophat(input, structure=structure)
print("\nresult: ", (d == output).all())
#16.intMultiply..............
print("\nintMultiply VoxelProcessind")
output = vc.intMultiply(input, makeFloat32=False, scalar=10)
print("\nintMultiply Default")
d = input * 10
print("\nresult: ", (d == output).all())
def correct_baseline(signal, tophat_factor=.005):
""" use tophat morphological transform to correct for baseline """
footprint = np.repeat([1], int(round(signal.size * tophat_factor)))
return ndimage.white_tophat(signal, None, footprint)
def image_process(I,smudgesize):
#p1, p2 = np.percentile(img, (perc_min, perc_max))
result1 = white_tophat(I,smudgesize)
#result1 = exposure.rescale_intensity(img, in_range=(p1, p2))
return result1
def white_tophat(image, selem=None, out=None):
"""Return white top hat of an image.
The white top hat of an image is defined as the image minus its
morphological opening. This operation returns the bright spots of the image
that are smaller than the structuring element.
Parameters
----------
image : ndarray
Image array.
selem : ndarray, optional
The neighborhood expressed as an array of 1's and 0's.
If None, use cross-shaped structuring element (connectivity=1).
out : ndarray, optional
The array to store the result of the morphology. If None
is passed, a new array will be allocated.
Returns
-------
out : array, same shape and type as `image`
The result of the morphological white top hat.
See Also
--------
black_tophat
References
----------
.. [1] https://en.wikipedia.org/wiki/Top-hat_transform
Examples
--------
>>> # Subtract grey background from bright peak
>>> import numpy as np
>>> from skimage.morphology import square
>>> bright_on_grey = np.array([[2, 3, 3, 3, 2],
... [3, 4, 5, 4, 3],
... [3, 5, 9, 5, 3],
... [3, 4, 5, 4, 3],
... [2, 3, 3, 3, 2]], dtype=np.uint8)
>>> white_tophat(bright_on_grey, square(3))
array([[0, 0, 0, 0, 0],
[0, 0, 1, 0, 0],
[0, 1, 5, 1, 0],
[0, 0, 1, 0, 0],
[0, 0, 0, 0, 0]], dtype=uint8)
"""
selem = np.array(selem)
if out is image:
opened = opening(image, selem)
if np.issubdtype(opened.dtype, bool):
np.logical_xor(out, opened, out=out)
else:
out -= opened
return out
elif out is None:
out = np.empty_like(image)
# work-around for NumPy deprecation warning for arithmetic
# operations on bool arrays
if isinstance(image, np.ndarray) and image.dtype == bool:
image_ = image.view(dtype=np.uint8)
else:
image_ = image
if isinstance(out, np.ndarray) and out.dtype == bool:
out_ = out.view(dtype=np.uint8)
else:
out_ = out
out_ = ndi.white_tophat(image_, footprint=selem, output=out_)
return out
#path = 'C:/Users/55116867/Dropbox/codingchallenge/challengeFiles/'
path = 'C:/Users/MuhammadSalman/Dropbox/codingchallenge/challengeFiles/'
tiff_file = 'Wed_morningSession_nup555_647.1528885469405-2'
I = plt.imread(path+tiff_file+'.tif')
I = I/256
fig = plt.figure(figsize=(20,40))
plt.gray() # show the filtered result in grayscale
ax1 = fig.add_subplot(121) # left side
ax2 = fig.add_subplot(122)
result = white_tophat(I,12)
result22 = ndimage.gaussian_laplace(result, sigma=3.4)
result22 = 1-result22
val = filters.threshold_otsu(result22)
result1 = result22>val
result2 = morphology.remove_small_objects(result1, 4)
distance = ndimage.distance_transform_edt(result2)
local_maxi = feature.peak_local_max(distance, indices=False,
labels=result2)
markers = ndimage.label(local_maxi)[0]
labels = morphology.watershed(-distance, markers, mask=result2)
ax1.imshow(I)
ax2.imshow(I)