code: from cva import COLOR_BGR2GRAY, cvtColor, imread, imshow, waitKey
  from numpy import divide, inta, multiply, ravel, sort, zeros_like
  
  
  def 					__lowerCAmelCase			(  _A ,_A=3					):
  
  
  
  							"""simple docstring"""
  
  
  							_lowercase				=	int(mask / 2					)
  							# copy image size
  							_lowercase				=	zeros_like(_A					)
  							for i in range(_A ,gray_img.shape[0] - bd					):
  														for j in range(_A ,gray_img.shape[1] - bd					):
  																					# get mask according with mask
  																					_lowercase				=	ravel(gray_img[i - bd : i + bd + 1, j - bd : j + bd + 1]					)
  																					# calculate mask median
  																					_lowercase				=	sort(_A					)[inta(divide((multiply(_A ,_A					)) ,2					) + 1					)]
  																					_lowercase				=	median
  							return median_img
  
  
  if __name__ == "__main__":
  				# read original image
  				A_:      Tuple        =			imread('../image_data/lena.jpg')
  				# turn image in gray scale value
  				A_:      Dict        =			cvtColor(img, COLOR_BGR2GRAY)
  
  				# get values with two different mask size
  				A_:      Optional[int]        =			median_filter(gray, 3)
  				A_:      int        =			median_filter(gray, 5)
  
  				# show result images
  				imshow('median filter with 3x3 mask', medianaxa)
  				imshow('median filter with 5x5 mask', medianaxa)
  				waitKey(0)
  
  
  
style_context: import math
  from timeit import timeit
  
  
  def 					__lowerCAmelCase			(  _A					):
  
  
  
  							"""simple docstring"""
  
  
  							_lowercase				=	0
  							_lowercase				=	abs(_A					)
  							while True:
  														_lowercase				=	n // 10
  														digits += 1
  														if n == 0:
  																					break
  							return digits
  
  
  def 					__lowerCAmelCase			(  _A					):
  
  
  
  							"""simple docstring"""
  
  
  							return 1 if n == 0 else math.floor(math.log(abs(_A					) ,10					) + 1					)
  
  
  def 					__lowerCAmelCase			(  _A					):
  
  
  
  							"""simple docstring"""
  
  
  							return len(str(abs(_A					)					)					)
  
  
  def 					__lowerCAmelCase			(  ):
  
  
  
  							"""simple docstring"""
  
  
  							from collections.abc import Callable
  
  							def benchmark_a_function(_A ,_A					) -> None:
  														_lowercase				=	f'''{func.__name__}({value})'''
  														_lowercase				=	timeit(f'''__main__.{call}''' ,setup="""import __main__"""					)
  														print(f'''{call}: {func(_A					)} -- {timing} seconds'''					)
  
  							for value in (262_144, 1_125_899_906_842_624, 1_267_650_600_228_229_401_496_703_205_376):
  														for func in (num_digits, num_digits_fast, num_digits_faster):
  																					benchmark_a_function(_A ,_A					)
  														print()
  
  
  if __name__ == "__main__":
  				import doctest
  
  				doctest.testmod()
  				benchmark()
  
  
  