




from cva import COLOR_BGR2GRAY, cvtColor, imread, imshow, waitKey
from numpy import array, dot, pad, ravel, uinta, zeros


def 				_a       (				lowerCAmelCase						,	lowerCAmelCase   )->  Optional[Any]:
		SCREAMING_SNAKE_CASE_			,							SCREAMING_SNAKE_CASE_							=       image.shape
		SCREAMING_SNAKE_CASE_							=       cols - block_size[1] + 1
		SCREAMING_SNAKE_CASE_							=       rows - block_size[0] + 1
		SCREAMING_SNAKE_CASE_							=       zeros((dst_height * dst_width, block_size[1] * block_size[0])   )
		SCREAMING_SNAKE_CASE_							=       0
		for i in range(0						,	lowerCAmelCase   ):
				for j in range(0						,	lowerCAmelCase   ):
						SCREAMING_SNAKE_CASE_							=       ravel(image[i : i + block_size[0], j : j + block_size[1]]   )
						SCREAMING_SNAKE_CASE_							=       window
						row += 1

		return image_array


def 				_a       (				lowerCAmelCase						,	lowerCAmelCase   )->  str:
		SCREAMING_SNAKE_CASE_			,							SCREAMING_SNAKE_CASE_							=       image.shape[0], image.shape[1]
		SCREAMING_SNAKE_CASE_							=       filter_kernel.shape[0]
		SCREAMING_SNAKE_CASE_							=       k_size // 2
		# Pads image with the edge values of array.
		SCREAMING_SNAKE_CASE_							=       pad(lowerCAmelCase						,	lowerCAmelCase						,	mode='edge'   )

		# im2col, turn the k_size*k_size pixels into a row and np.vstack all rows
		SCREAMING_SNAKE_CASE_							=       imacol(lowerCAmelCase						,	(k_size, k_size)   )

		#  turn the kernel into shape(k*k, 1)
		SCREAMING_SNAKE_CASE_							=       ravel(lowerCAmelCase   )
		# reshape and get the dst image
		SCREAMING_SNAKE_CASE_							=       dot(lowerCAmelCase						,	lowerCAmelCase   ).reshape(lowerCAmelCase						,	lowerCAmelCase   )
		return dst


if __name__ == "__main__":
						# read original image
						SCREAMING_SNAKE_CASE:    List[str]											=   imread(r'''../image_data/lena.jpg''')
						# turn image in gray scale value
						SCREAMING_SNAKE_CASE:    Optional[Any]											=   cvtColor(img, COLOR_BGR2GRAY)
						# Laplace operator
						SCREAMING_SNAKE_CASE:    List[str]											=   array([[0, 1, 0], [1, -4, 1], [0, 1, 0]])
						SCREAMING_SNAKE_CASE:    List[str]											=   img_convolve(gray, Laplace_kernel).astype(uinta)
						imshow('''Laplacian''', out)
						waitKey(0)





from __future__ import annotations

import random
import string



class       lowercase_		:



						def __init__( self  :      str				,       snake_case__  :      str | None = None     ):

								"""simple docstring"""

								SCREAMING_SNAKE_CASE_							=       passcode or self.__passcode_creator()
								SCREAMING_SNAKE_CASE_							=       self.__make_key_list()
								SCREAMING_SNAKE_CASE_							=       self.__make_shift_key()



						def __str__( self  :      List[Any]     ):

								"""simple docstring"""

								return "".join(self.__passcode     )



						def   __a				( self  :      Union[str, Any]				,       snake_case__  :      list[int]     ):

								"""simple docstring"""

								for i in range(1				,       len(snake_case__     )				,       2     ):
										iterlist[i] *= -1
								return iterlist



						def   __a				( self  :      str     ):

								"""simple docstring"""

								SCREAMING_SNAKE_CASE_							=       string.ascii_letters + string.digits
								SCREAMING_SNAKE_CASE_							=       [random.choice(snake_case__     ) for _ in range(random.randint(10				,       20     )     )]
								return password



						def   __a				( self  :      str     ):

								"""simple docstring"""

								SCREAMING_SNAKE_CASE_							=       (
								    string.ascii_letters + string.digits + string.punctuation + ' \t\n'
								)

								SCREAMING_SNAKE_CASE_							=       []

								# creates points known as breakpoints to break the key_list_options at those
								# points and pivot each substring
								SCREAMING_SNAKE_CASE_							=       sorted(set(self.__passcode     )     )
								SCREAMING_SNAKE_CASE_							=       []

								# algorithm for creating a new shuffled list, keys_l, out of key_list_options
								for i in key_list_options:
										temp_list.extend(snake_case__     )

										# checking breakpoints at which to pivot temporary sublist and add it into
										# keys_l
										if i in breakpoints or i == key_list_options[-1]:
												keys_l.extend(temp_list[::-1]     )
												temp_list.clear()

        # returning a shuffled keys_l to prevent brute force guessing of shift key
								return keys_l



						def   __a				( self  :      Union[str, Any]     ):

								"""simple docstring"""

								SCREAMING_SNAKE_CASE_							=       sum(self.__neg_pos([ord(snake_case__     ) for x in self.__passcode]     )     )
								return num if num > 0 else len(self.__passcode     )



						def   __a				( self  :      str				,       snake_case__  :      str     ):

								"""simple docstring"""

								SCREAMING_SNAKE_CASE_							=       ''

								# decoding shift like Caesar cipher algorithm implementing negative shift or
								# reverse shift or left shift
								for i in encoded_message:
										SCREAMING_SNAKE_CASE_							=       self.__key_list.index(snake_case__     )
										decoded_message += self.__key_list[
										    (position - self.__shift_key) % -len(self.__key_list     )
										]

								return decoded_message






						def   __a				( self  :      Optional[int]				,       snake_case__  :      str     ):

								"""simple docstring"""

								SCREAMING_SNAKE_CASE_							=       ''

								# encoding shift like Caesar cipher algorithm implementing positive shift or
								# forward shift or right shift
								for i in plaintext:
										SCREAMING_SNAKE_CASE_							=       self.__key_list.index(snake_case__     )
										encoded_message += self.__key_list[
										    (position + self.__shift_key) % len(self.__key_list     )
										]

								return encoded_message


def 				_a       (				lowerCAmelCase = "Hello, this is a modified Caesar cipher"   )->  str:
		SCREAMING_SNAKE_CASE_							=       ShuffledShiftCipher()
		return cipa.decrypt(cipa.encrypt(lowerCAmelCase   )   )


if __name__ == "__main__":
						import doctest

						doctest.testmod()