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Adding doc for the different modes of _slanted_integral_inage_modes

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Ankit Agrawal
2013-08-15 14:59:55 +05:30
parent efba964dde
commit 50a18383df
1 changed files with 42 additions and 0 deletions
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skimage/feature/censure.py
+42
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@@ -54,12 +54,34 @@ def _get_filtered_image(image, no_of_scales, mode):
def _slanted_integral_image_modes(img, mode=1):
if mode == 1:
"""
The following figures describe area that is summed up to calculate
the value at point @ in slanted integral image.
_________________
|********/ |
|*******/ |
|******/ |
|-----@ |
| |
| |
|_________________|
"""
image = np.copy(img, order='C')
mode1 = np.zeros((image.shape[0] + 1, image.shape[1]), order='C')
_slanted_integral_image(image, mode1)
return mode1[1:, :]
elif mode == 2:
"""
_________________
| |
| |
| |
| @_____|
| /******|
| /*******|
|________/________|
"""
image = np.copy(img, order='C')
image = np.fliplr(image)
image = np.flipud(image)
@@ -72,6 +94,16 @@ def _slanted_integral_image_modes(img, mode=1):
return mode2
elif mode == 3:
"""
_________________
| |
|\\ |
|*\\ |
|**\\ |
|***@ |
|***| |
|___|_____________|
"""
image = np.copy(img, order='C')
image = np.flipud(image)
image = image.T
@@ -83,6 +115,16 @@ def _slanted_integral_image_modes(img, mode=1):
return mode3
else:
"""
________________
| |****|
| |****|
| @****|
| \\**|
| \\*|
| \\|
|________________|
"""
image = np.copy(img, order='C')
image = np.fliplr(image)
image = image.T