'''simple docstring'''

import random
import sys

__snake_case       :   str  		=    '''ABCDEFGHIJKLMNOPQRSTUVWXYZ'''



def lowerCamelCase__						(       ):
	UpperCAmelCase_				       =					input("Enter message: "       )
	UpperCAmelCase_				       =					"LFWOAYUISVKMNXPBDCRJTQEGHZ"
	UpperCAmelCase_				       =					input("Encrypt/Decrypt [e/d]: "       )

	check_valid_key(A_       )

	if resp.lower().startswith("e"       ):
		UpperCAmelCase_				       =					"encrypt"
		UpperCAmelCase_				       =					encrypt_message(A_       ,			A_       )
	elif resp.lower().startswith("d"       ):
		UpperCAmelCase_				       =					"decrypt"
		UpperCAmelCase_				       =					decrypt_message(A_       ,			A_       )

	print(F"""\n{mode.title()}ion: \n{translated}"""       )



def lowerCamelCase__						(       A_       ):
	UpperCAmelCase_				       =					list(A_       )
	UpperCAmelCase_				       =					list(A_       )
	key_list.sort()
	letters_list.sort()

	if key_list != letters_list:
		sys.exit("Error in the key or symbol set."       )



def lowerCamelCase__						(       A_       ,			A_       ):
	return translate_message(A_       ,			A_       ,			"encrypt"       )



def lowerCamelCase__						(       A_       ,			A_       ):
	return translate_message(A_       ,			A_       ,			"decrypt"       )



def lowerCamelCase__						(       A_       ,			A_       ,			A_       ):
	UpperCAmelCase_				       =					""
	UpperCAmelCase_				       =					LETTERS
	UpperCAmelCase_				       =					key

	if mode == "decrypt":
		UpperCAmelCase_       ,       UpperCAmelCase_				       =					chars_b, chars_a

	for symbol in message:
		if symbol.upper() in chars_a:
			UpperCAmelCase_				       =					chars_a.find(symbol.upper()       )
			if symbol.isupper():
				translated += chars_b[sym_index].upper()
			else:
				translated += chars_b[sym_index].lower()
		else:
			translated += symbol

	return translated



def lowerCamelCase__						(       ):
	UpperCAmelCase_				       =					list(A_       )
	random.shuffle(A_       )
	return "".join(A_       )


if __name__ == "__main__":
						main()

'''simple docstring'''

import numpy as np
from PIL import Image



def lowerCamelCase__						(       A_       ):
 UpperCAmelCase_       ,       UpperCAmelCase_       ,       UpperCAmelCase_				       =					rgb[:, :, 0], rgb[:, :, 1], rgb[:, :, 2]
 return 0.2989 * r + 0.5870 * g + 0.1140 * b



def lowerCamelCase__						(       A_       ):
 return (gray > 127) & (gray <= 255)



def lowerCamelCase__						(       A_       ,			A_       ):
 UpperCAmelCase_				       =					np.zeros_like(A_       )
 UpperCAmelCase_				       =					np.zeros(
     (image.shape[0] + kernel.shape[0] - 1, image.shape[1] + kernel.shape[1] - 1)       )

 # Copy image to padded image
 UpperCAmelCase_				       =					image

 # Iterate over image & apply kernel
 for x in range(image.shape[1]       ):
  for y in range(image.shape[0]       ):
   UpperCAmelCase_				       =					(
       kernel * image_padded[y : y + kernel.shape[0], x : x + kernel.shape[1]]
   ).sum()
   UpperCAmelCase_				       =					int(summation == 5       )
 return output


# kernel to be applied
__snake_case       :   List[str]  		=    np.array([[0, 1, 0], [1, 1, 1], [0, 1, 0]])

if __name__ == "__main__":
      # read original image
      __snake_case       :   int  		=    np.array(Image.open(R'''..\image_data\lena.jpg'''))
      # Apply erosion operation to a binary image
      __snake_case       :   str  		=    erosion(grayabinary(rgbagray(image)), structuring_element)
      # Save the output image
      __snake_case       :   List[Any]  		=    Image.fromarray(output).convert('''RGB''')
      pil_img.save('''result_erosion.png''')
