


from pathlib import Path

import numpy as np
from PIL import Image

def 						_UpperCAmelCase    (      SCREAMING_SNAKE_CASE__      : np.ndarray    ):
     __UpperCamelCase							,				__UpperCamelCase							,				__UpperCamelCase   							=rgb[:, :, 0], rgb[:, :, 1], rgb[:, :, 2]
     return 0.2989 * r + 0.5870 * g + 0.1140 * b

def 						_UpperCAmelCase    (      SCREAMING_SNAKE_CASE__      : np.ndarray    ):
     return (gray > 1_27) & (gray <= 2_55)

def 						_UpperCAmelCase    (      SCREAMING_SNAKE_CASE__      : np.ndarray      ,					SCREAMING_SNAKE_CASE__      : np.ndarray    ):
     __UpperCamelCase   							=np.zeros_like(SCREAMING_SNAKE_CASE__    )
     __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 > 0    )
     return output


if __name__ == "__main__":
   # read original image
   _A			=						Path(__file__).resolve().parent / 'image_data' / 'lena.jpg'
   _A			=						np.array(Image.open(lena_path))
   # kernel to be applied
   _A			=						np.array([[0, 1, 0], [1, 1, 1], [0, 1, 0]])
   _A			=						dilation(gray_to_binary(rgb_to_gray(lena)), structuring_element)
   # Save the output image
   _A			=						Image.fromarray(output).convert('RGB')
   pil_img.save('result_dilation.png')









import os
import random
import sys

from . import cryptomath_module as cryptoMath  # noqa: N812
from . import rabin_miller as rabinMiller  # noqa: N812

def 						_UpperCAmelCase    (      ):
     print('Making key files...'    )
     make_key_files('rsa'      ,					10_24    )
     print('Key files generation successful.'    )

def 						_UpperCAmelCase    (      SCREAMING_SNAKE_CASE__      : int    ):
     print('Generating prime p...'    )
     __UpperCamelCase   							=rabinMiller.generate_large_prime(SCREAMING_SNAKE_CASE__    )
     print('Generating prime q...'    )
     __UpperCamelCase   							=rabinMiller.generate_large_prime(SCREAMING_SNAKE_CASE__    )
     __UpperCamelCase   							=p * q

     print('Generating e that is relatively prime to (p - 1) * (q - 1)...'    )
     while True:
          __UpperCamelCase   							=random.randrange(2 ** (key_size - 1)      ,					2 ** (key_size)    )
          if cryptoMath.gcd(SCREAMING_SNAKE_CASE__      ,					(p - 1) * (q - 1)    ) == 1:
               break

     print('Calculating d that is mod inverse of e...'    )
     __UpperCamelCase   							=cryptoMath.find_mod_inverse(SCREAMING_SNAKE_CASE__      ,					(p - 1) * (q - 1)    )

     __UpperCamelCase   							=(n, e)
     __UpperCamelCase   							=(n, d)
     return (public_key, private_key)

def 						_UpperCAmelCase    (      SCREAMING_SNAKE_CASE__      : str      ,					SCREAMING_SNAKE_CASE__      : int    ):
     if os.path.exists(F'{name}_pubkey.txt'    ) or os.path.exists(F'{name}_privkey.txt'    ):
          print('\nWARNING:'    )
          print(
              F'"{name}_pubkey.txt" or "{name}_privkey.txt" already exists. \n'
              'Use a different name or delete these files and re-run this program.'    )
          sys.exit()

     __UpperCamelCase							,				__UpperCamelCase   							=generate_key(SCREAMING_SNAKE_CASE__    )
     print(F'\nWriting public key to file {name}_pubkey.txt...'    )
     with open(F'{name}_pubkey.txt'      ,					'w'    ) as out_file:
          out_file.write(F'{key_size},{public_key[0]},{public_key[1]}'    )

     print(F'Writing private key to file {name}_privkey.txt...'    )
     with open(F'{name}_privkey.txt'      ,					'w'    ) as out_file:
          out_file.write(F'{key_size},{private_key[0]},{private_key[1]}'    )


if __name__ == "__main__":
   main()





