






'''simple docstring'''





import numpy as np
from cva import COLOR_BGR2GRAY, CV_8UC3, cvtColor, filteraD, imread, imshow, waitKey

def _UpperCAmelCase   (	a						:	int  ,					a						:	int  ,					a						:	int  ,					a						:	int  ,					a						:	int  ,					a						:	int ):

							# prepare kernel
							# the kernel size have to be odd
							if (ksize % 2) == 0:
														snake_case__	  =       ksize + 1
							snake_case__	  =       np.zeros((ksize, ksize)  ,					dtype=np.floataa )

							# each value
							for y in range(a ):
														for x in range(a ):
																					# distance from center
																					snake_case__	  =       x - ksize // 2
																					snake_case__	  =       y - ksize // 2

																					# degree to radiant
																					snake_case__	  =       theta / 180 * np.pi
																					snake_case__	  =       np.cos(_theta )
																					snake_case__	  =       np.sin(_theta )

																					# get kernel x
																					snake_case__	  =       cos_theta * px + sin_theta * py

																					# get kernel y
																					snake_case__	  =       -sin_theta * px + cos_theta * py

																					# fill kernel
																					snake_case__	  =       np.exp(
																					    -(_x**2 + gamma**2 * _y**2) / (2 * sigma**2) ) * np.cos(2 * np.pi * _x / lambd + psi )

							return gabor


if __name__ == "__main__":
	import doctest

	doctest.testmod()
	# read original image
	a__       =     imread("""../image_data/lena.jpg""")
	# turn image in gray scale value
	a__       =     cvtColor(img, COLOR_BGR2GRAY)

	# Apply multiple Kernel to detect edges
	a__       =     np.zeros(gray.shape[:2])
	for theta in [0, 3_0, 6_0, 9_0, 1_2_0, 1_5_0]:
		a__       =     gabor_filter_kernel(1_0, 8, theta, 1_0, 0, 0)
		out += filteraD(gray, CV_8UC3, kernel_aa)
	a__       =     out / out.max() * 2_5_5
	a__       =     out.astype(np.uinta)

	imshow("""Original""", gray)
	imshow("""Gabor filter with 20x20 mask and 6 directions""", out)

	waitKey(0)








import random
from typing import Any

def _UpperCAmelCase   (	a						:	list ):
							for _ in range(len(a ) ):
														snake_case__	  =       random.randint(0  ,					len(a ) - 1 )
														snake_case__	  =       random.randint(0  ,					len(a ) - 1 )
														snake_case__  , snake_case__	  =       data[b], data[a]
							return data


if __name__ == "__main__":
	a__       =     [0, 1, 2, 3, 4, 5, 6, 7]
	a__       =     ["""python""", """says""", """hello""", """!"""]
	print("""Fisher-Yates Shuffle:""")
	print("""List""", integers, strings)
	print("""FY Shuffle""", fisher_yates_shuffle(integers), fisher_yates_shuffle(strings))
