




import random
import sys

from . import cryptomath_module as cryptomath

a_										=       (
    R" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`"
    R"abcdefghijklmnopqrstuvwxyz{|}~"
)




def    __SCREAMING_SNAKE_CASE				(					lowercase_   ,       lowercase_   ,       lowercase_ )    ->		None:

    """simple docstring"""


    if mode == "encrypt":
        if key_a == 1:
            sys.exit(
                '''The affine cipher becomes weak when key '''
                '''A is set to 1. Choose different key''' )
        if key_b == 0:
            sys.exit(
                '''The affine cipher becomes weak when key '''
                '''B is set to 0. Choose different key''' )
    if key_a < 0 or key_b < 0 or key_b > len(lowercase_ ) - 1:
        sys.exit(
            '''Key A must be greater than 0 and key B must '''
            F"be between 0 and {len(lowercase_ ) - 1}." )
    if cryptomath.gcd(lowercase_   ,       len(lowercase_ ) ) != 1:
        sys.exit(
            F"Key A {key_a} and the symbol set size {len(lowercase_ )} "
            '''are not relatively prime. Choose a different key.''' )




def    __SCREAMING_SNAKE_CASE				(					lowercase_   ,       lowercase_ )    ->		str:

    """simple docstring"""


    __UpperCamelCase						, __UpperCamelCase											=  divmod(lowercase_   ,       len(lowercase_ ) )
    check_keys(lowercase_   ,       lowercase_   ,       '''encrypt''' )
    __UpperCamelCase											=  ''''''
    for symbol in message:
        if symbol in SYMBOLS:
            __UpperCamelCase											=  SYMBOLS.find(lowercase_ )
            cipher_text += SYMBOLS[(sym_index * key_a + key_b) % len(lowercase_ )]
        else:
            cipher_text += symbol
    return cipher_text




def    __SCREAMING_SNAKE_CASE				(					lowercase_   ,       lowercase_ )    ->		str:

    """simple docstring"""


    __UpperCamelCase						, __UpperCamelCase											=  divmod(lowercase_   ,       len(lowercase_ ) )
    check_keys(lowercase_   ,       lowercase_   ,       '''decrypt''' )
    __UpperCamelCase											=  ''''''
    __UpperCamelCase											=  cryptomath.find_mod_inverse(lowercase_   ,       len(lowercase_ ) )
    for symbol in message:
        if symbol in SYMBOLS:
            __UpperCamelCase											=  SYMBOLS.find(lowercase_ )
            plain_text += SYMBOLS[
                (sym_index - key_b) * mod_inverse_of_key_a % len(lowercase_ )
            ]
        else:
            plain_text += symbol
    return plain_text




def    __SCREAMING_SNAKE_CASE				(					)    ->		int:

    """simple docstring"""


    while True:
        __UpperCamelCase											=  random.randint(2   ,       len(lowercase_ ) )
        __UpperCamelCase											=  random.randint(2   ,       len(lowercase_ ) )
        if cryptomath.gcd(lowercase_   ,       len(lowercase_ ) ) == 1 and key_b % len(lowercase_ ) != 0:
            return key_b * len(lowercase_ ) + key_b




def    __SCREAMING_SNAKE_CASE				(					)    ->		None:

    """simple docstring"""


    __UpperCamelCase											=  input('''Enter message: ''' ).strip()
    __UpperCamelCase											=  int(input('''Enter key [2000 - 9000]: ''' ).strip() )
    __UpperCamelCase											=  input('''Encrypt/Decrypt [E/D]: ''' ).strip().lower()

    if mode.startswith('''e''' ):
        __UpperCamelCase											=  '''encrypt'''
        __UpperCamelCase											=  encrypt_message(lowercase_   ,       lowercase_ )
    elif mode.startswith('''d''' ):
        __UpperCamelCase											=  '''decrypt'''
        __UpperCamelCase											=  decrypt_message(lowercase_   ,       lowercase_ )
    print(F"\n{mode.title()}ed text: \n{translated}" )


if __name__ == "__main__":
 import doctest

 doctest.testmod()
 # main()












import cva
import numpy as np




def    __SCREAMING_SNAKE_CASE				(					lowercase_   ,       lowercase_   ,       lowercase_   ,       lowercase_ )    ->		int:

    """simple docstring"""


    try:
        return int(image[x_coordinate][y_coordinate] >= center )
    except (IndexError, TypeError):
        return 0




def    __SCREAMING_SNAKE_CASE				(					lowercase_   ,       lowercase_   ,       lowercase_ )    ->		int:

    """simple docstring"""


    __UpperCamelCase											=  image[x_coordinate][y_coordinate]
    __UpperCamelCase											=  [1, 2, 4, 8, 16, 32, 64, 1_28]

    # skip get_neighbors_pixel if center is null
    if center is None:
        return 0

    # Starting from the top right, assigning value to pixels clockwise
    __UpperCamelCase											=  [
        get_neighbors_pixel(lowercase_   ,       x_coordinate - 1   ,       y_coordinate + 1   ,       lowercase_ ),
        get_neighbors_pixel(lowercase_   ,       lowercase_   ,       y_coordinate + 1   ,       lowercase_ ),
        get_neighbors_pixel(lowercase_   ,       x_coordinate - 1   ,       lowercase_   ,       lowercase_ ),
        get_neighbors_pixel(lowercase_   ,       x_coordinate + 1   ,       y_coordinate + 1   ,       lowercase_ ),
        get_neighbors_pixel(lowercase_   ,       x_coordinate + 1   ,       lowercase_   ,       lowercase_ ),
        get_neighbors_pixel(lowercase_   ,       x_coordinate + 1   ,       y_coordinate - 1   ,       lowercase_ ),
        get_neighbors_pixel(lowercase_   ,       lowercase_   ,       y_coordinate - 1   ,       lowercase_ ),
        get_neighbors_pixel(lowercase_   ,       x_coordinate - 1   ,       y_coordinate - 1   ,       lowercase_ ),
    ]

    # Converting the binary value to decimal.
    return sum(
        binary_value * power for binary_value, power in zip(lowercase_   ,       lowercase_ ) )


if __name__ == "__main__":
 # Reading the image and converting it to grayscale.
 a_										=       cva.imread(
     "digital_image_processing/image_data/lena.jpg", cva.IMREAD_GRAYSCALE
 )

 # Create a numpy array as the same height and width of read image
 a_										=       np.zeros((image.shape[0], image.shape[1]))

 # Iterating through the image and calculating the
 # local binary pattern value for each pixel.
 for i in range(0, image.shape[0]):
  for j in range(0, image.shape[1]):
   a_										=       local_binary_value(image, i, j)

 cva.imshow("local binary pattern", lbp_image)
 cva.waitKey(0)
 cva.destroyAllWindows()






