Pinned Loading

1. different ways to calculate black pi... different ways to calculate black pixel ratio in a binray image

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   >>> image

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   array([[1, 0, 0, 1, 0],

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          [0, 1, 0, 0, 1],

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          [0, 0, 1, 0, 0],

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          [1, 0, 0, 1, 0]])

2. An alternative to numpy.argmin() An alternative to numpy.argmin()

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   >>> import numpy as np

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   >>> x = np.arange(127, 255, 50)

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   >>> x

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   array([127, 177, 227])

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   >>> x.argmin()

3. Python: find most common element in ... Python: find most common element in corresponding two lists

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   import itertools

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   a = [7, 3]

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   b = [3, 1, 2]

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   c = [4, 3, 5]

4. Reverse and splice python tuple Reverse and splice python tuple

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   """ About:

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   img is an OpenCV 2 object. img.shape prints a tuple as (height, width, channels) e.g. (512, 768, 3)

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   We need a tuple as (width, height) e.g. (768, 512)

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   """

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5. Python Compare two dictionaries Python Compare two dictionaries

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   def compareDicts(d1, d2):

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       differences = []

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       # present in d1 but not in d2

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       for key, value in ({k: d1[k] for k in set(d1) - set(d2)}).iteritems():

6. Sort dictionary with values closest ... Sort dictionary with values closest to given value

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   >>> chooseFrom

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   {'1': 10.3438090737, '3': 7.73275047259, '2': 12.9046550095, '5': 10.3438090737, '4': 12.9046550095, '7': 7.88437303088, '6': 5.12169187146, '8': 0.0}

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   >>> gh

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   7.73275047259

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