


import cva
import numpy as np

from digital_image_processing.filters.convolve import img_convolve
from digital_image_processing.filters.sobel_filter import sobel_filter

_SCREAMING_SNAKE_CASE       :   Optional[int]        = 1_80



def 						_UpperCamelCase							( UpperCamelCase__     ,   UpperCamelCase__		):






				"""simple docstring"""



				__magic_name__				:					Dict						       =       k_size // 2
				__magic_name__       ,     __magic_name__				:					int						       =       np.mgrid[0 - center : k_size - center, 0 - center : k_size - center]
				__magic_name__				:					int						       =       (
				    1
				    / (2 * np.pi * sigma)
				    * np.exp(-(np.square(UpperCamelCase__		) + np.square(UpperCamelCase__		)) / (2 * np.square(UpperCamelCase__		))		)
				)
				return g



def 						_UpperCamelCase							( UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__		):






				"""simple docstring"""



				__magic_name__				:					Union[str, Any]						       =       np.zeros(UpperCamelCase__		)

				for row in range(1     ,   image_shape[0] - 1		):
								for col in range(1     ,   image_shape[1] - 1		):
												__magic_name__				:					Tuple						       =       gradient_direction[row, col]

												if (
												    0 <= direction < PI / 8
												    or 15 * PI / 8 <= direction <= 2 * PI
												    or 7 * PI / 8 <= direction <= 9 * PI / 8
												):
																__magic_name__				:					Optional[Any]						       =       sobel_grad[row, col - 1]
																__magic_name__				:					int						       =       sobel_grad[row, col + 1]
																if sobel_grad[row, col] >= w and sobel_grad[row, col] >= e:
																				__magic_name__				:					Union[str, Any]						       =       sobel_grad[row, col]

												elif (
												    PI / 8 <= direction < 3 * PI / 8
												    or 9 * PI / 8 <= direction < 11 * PI / 8
												):
																__magic_name__				:					Dict						       =       sobel_grad[row + 1, col - 1]
																__magic_name__				:					List[str]						       =       sobel_grad[row - 1, col + 1]
																if sobel_grad[row, col] >= sw and sobel_grad[row, col] >= ne:
																				__magic_name__				:					Dict						       =       sobel_grad[row, col]

												elif (
												    3 * PI / 8 <= direction < 5 * PI / 8
												    or 11 * PI / 8 <= direction < 13 * PI / 8
												):
																__magic_name__				:					List[Any]						       =       sobel_grad[row - 1, col]
																__magic_name__				:					int						       =       sobel_grad[row + 1, col]
																if sobel_grad[row, col] >= n and sobel_grad[row, col] >= s:
																				__magic_name__				:					Union[str, Any]						       =       sobel_grad[row, col]

												elif (
												    5 * PI / 8 <= direction < 7 * PI / 8
												    or 13 * PI / 8 <= direction < 15 * PI / 8
												):
																__magic_name__				:					Union[str, Any]						       =       sobel_grad[row - 1, col - 1]
																__magic_name__				:					Optional[Any]						       =       sobel_grad[row + 1, col + 1]
																if sobel_grad[row, col] >= nw and sobel_grad[row, col] >= se:
																				__magic_name__				:					Any						       =       sobel_grad[row, col]

				return destination



def 						_UpperCamelCase							( UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__		):






				"""simple docstring"""



				for row in range(1     ,   image_shape[0] - 1		):
								for col in range(1     ,   image_shape[1] - 1		):
												if destination[row, col] >= threshold_high:
																__magic_name__				:					Optional[Any]						       =       strong
												elif destination[row, col] <= threshold_low:
																__magic_name__				:					str						       =       0
												else:
																__magic_name__				:					int						       =       weak



def 						_UpperCamelCase							( UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__		):






				"""simple docstring"""



				for row in range(1     ,   image_shape[0]		):
								for col in range(1     ,   image_shape[1]		):
												if destination[row, col] == weak:
																if 255 in (
																    destination[row, col + 1],
																    destination[row, col - 1],
																    destination[row - 1, col],
																    destination[row + 1, col],
																    destination[row - 1, col - 1],
																    destination[row + 1, col - 1],
																    destination[row - 1, col + 1],
																    destination[row + 1, col + 1],
																):
																				__magic_name__				:					Any						       =       strong
																else:
																				__magic_name__				:					Optional[int]						       =       0



def 						_UpperCamelCase							( UpperCamelCase__     ,   UpperCamelCase__=15     ,   UpperCamelCase__=30     ,   UpperCamelCase__=128     ,   UpperCamelCase__=255		):






				"""simple docstring"""



				__magic_name__				:					Any						       =       img_convolve(UpperCamelCase__     ,   gen_gaussian_kernel(9     ,   sigma=1.4		)		)
				# get the gradient and degree by sobel_filter
				__magic_name__       ,     __magic_name__				:					Optional[Any]						       =       sobel_filter(UpperCamelCase__		)
				__magic_name__				:					List[str]						       =       PI + np.radadeg(UpperCamelCase__		)

				__magic_name__				:					Optional[Any]						       =       suppress_non_maximum(image.shape     ,   UpperCamelCase__     ,   UpperCamelCase__		)

				detect_high_low_threshold(
				    image.shape     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__		)

				track_edge(image.shape     ,   UpperCamelCase__     ,   UpperCamelCase__     ,   UpperCamelCase__		)

				return destination


if __name__ == "__main__":
		# read original image in gray mode
		_SCREAMING_SNAKE_CASE       :   List[str]        = cva.imread(r"../image_data/lena.jpg", 0)
		# canny edge detection
		_SCREAMING_SNAKE_CASE       :   Tuple        = canny(lena)
		cva.imshow("canny", canny_destination)
		cva.waitKey(0)



'''simple docstring'''







def 						_UpperCamelCase							( UpperCamelCase__     ,   UpperCamelCase__		):






				"""simple docstring"""



				if not isinstance(UpperCamelCase__     ,   UpperCamelCase__		):
								raise TypeError("plaintext must be a string"		)
				if not isinstance(UpperCamelCase__     ,   UpperCamelCase__		):
								raise TypeError("key must be a string"		)

				if not plaintext:
								raise ValueError("plaintext is empty"		)
				if not key:
								raise ValueError("key is empty"		)

				key += plaintext
				__magic_name__				:					List[str]						       =       plaintext.lower()
				__magic_name__				:					Tuple						       =       key.lower()
				__magic_name__				:					Dict						       =       0
				__magic_name__				:					Optional[int]						       =       0
				__magic_name__				:					List[str]						       =       ""
				while plaintext_iterator < len(UpperCamelCase__		):
								if (
								    ord(plaintext[plaintext_iterator]		) < 97
								    or ord(plaintext[plaintext_iterator]		) > 122
								):
												ciphertext += plaintext[plaintext_iterator]
												plaintext_iterator += 1
								elif ord(key[key_iterator]		) < 97 or ord(key[key_iterator]		) > 122:
												key_iterator += 1
								else:
												ciphertext += chr(
												    (
												        (ord(plaintext[plaintext_iterator]		) - 97 + ord(key[key_iterator]		))
												        - 97
												    )
												    % 26
												    + 97		)
												key_iterator += 1
												plaintext_iterator += 1
				return ciphertext



def 						_UpperCamelCase							( UpperCamelCase__     ,   UpperCamelCase__		):






				"""simple docstring"""



				if not isinstance(UpperCamelCase__     ,   UpperCamelCase__		):
								raise TypeError("ciphertext must be a string"		)
				if not isinstance(UpperCamelCase__     ,   UpperCamelCase__		):
								raise TypeError("key must be a string"		)

				if not ciphertext:
								raise ValueError("ciphertext is empty"		)
				if not key:
								raise ValueError("key is empty"		)

				__magic_name__				:					List[str]						       =       key.lower()
				__magic_name__				:					str						       =       0
				__magic_name__				:					Optional[Any]						       =       0
				__magic_name__				:					Tuple						       =       ""
				while ciphertext_iterator < len(UpperCamelCase__		):
								if (
								    ord(ciphertext[ciphertext_iterator]		) < 97
								    or ord(ciphertext[ciphertext_iterator]		) > 122
								):
												plaintext += ciphertext[ciphertext_iterator]
								else:
												plaintext += chr(
												    (ord(ciphertext[ciphertext_iterator]		) - ord(key[key_iterator]		)) % 26
												    + 97		)
												key += chr(
												    (ord(ciphertext[ciphertext_iterator]		) - ord(key[key_iterator]		)) % 26
												    + 97		)
												key_iterator += 1
								ciphertext_iterator += 1
				return plaintext


if __name__ == "__main__":
		import doctest

		doctest.testmod()
		_SCREAMING_SNAKE_CASE       :   Tuple        = int(input("Type 1 to encrypt or 2 to decrypt:"))
		if operation == 1:
				_SCREAMING_SNAKE_CASE       :   Optional[Any]        = input("Typeplaintext to be encrypted:\n")
				_SCREAMING_SNAKE_CASE       :   Tuple        = input("Type the key:\n")
				print(encrypt(plaintext, key))
		elif operation == 2:
				_SCREAMING_SNAKE_CASE       :   Optional[Any]        = input("Type the ciphertext to be decrypted:\n")
				_SCREAMING_SNAKE_CASE       :   List[str]        = input("Type the key:\n")
				print(decrypt(ciphertext, key))
		decrypt("jsqqs avvwo", "coffee")