


"""simple docstring"""



import numpy as np
from cva import COLOR_BGR2GRAY, CV_8UC3, cvtColor, filteraD, imread, imshow, waitKey







def     __lowerCAmelCase		(		lowercase    :    int		,				lowercase    :    int		,				lowercase    :    int		,				lowercase    :    int		,				lowercase    :    int		,				lowercase    :    int					)      ->		np.ndarray:


    """simple docstring"""





    if (ksize % 2) == 0:
        snake_case       : Tuple    =       ksize + 1
    snake_case       : str    =       np.zeros((ksize, ksize)		,				dtype=np.floataa					)

    # each value
    for y in range(lowercase					):
        for x in range(lowercase					):
            # distance from center
            snake_case       : str    =       x - ksize // 2
            snake_case       : List[str]    =       y - ksize // 2

            # degree to radiant
            snake_case       : Tuple    =       theta / 180 * np.pi
            snake_case       : List[str]    =       np.cos(_theta					)
            snake_case       : List[str]    =       np.sin(_theta					)

            # get kernel x
            snake_case       : List[str]    =       cos_theta * px + sin_theta * py

            # get kernel y
            snake_case       : Optional[Any]    =       -sin_theta * px + cos_theta * py

            # fill kernel
            snake_case       : int    =       np.exp(
                -(_x**2 + gamma**2 * _y**2) / (2 * sigma**2)					) * np.cos(2 * np.pi * _x / lambd + psi					)

    return gabor


if __name__ == "__main__":
  import doctest

  doctest.testmod()
  # read original image
  __snake_case       =       imread("""../image_data/lena.jpg""")
  # turn image in gray scale value
  __snake_case       =       cvtColor(img, COLOR_BGR2GRAY)

  # Apply multiple Kernel to detect edges
  __snake_case       =       np.zeros(gray.shape[:2])
  for theta in [0, 30, 60, 90, 120, 150]:
    __snake_case       =       gabor_filter_kernel(10, 8, theta, 10, 0, 0)
    out += filteraD(gray, CV_8UC3, kernel_aa)
  __snake_case       =       out / out.max() * 255
  __snake_case       =       out.astype(np.uinta)

  imshow("""Original""", gray)
  imshow("""Gabor filter with 20x20 mask and 6 directions""", out)

  waitKey(0)









"""simple docstring"""



__snake_case       =       """ABCDEFGHIJKLMNOPQRSTUVWXYZ"""







def     __lowerCAmelCase		(		)      ->		None:


    """simple docstring"""





    snake_case       : str    =       input("Enter message: "					)
    snake_case       : Tuple    =       input("Enter key [alphanumeric]: "					)
    snake_case       : Union[str, Any]    =       input("Encrypt/Decrypt [e/d]: "					)

    if mode.lower().startswith("e"					):
        snake_case       : str    =       "encrypt"
        snake_case       : Optional[int]    =       encrypt_message(lowercase		,				lowercase					)
    elif mode.lower().startswith("d"					):
        snake_case       : List[Any]    =       "decrypt"
        snake_case       : Tuple    =       decrypt_message(lowercase		,				lowercase					)

    print(F'\n{mode.title()}ed message:'					)
    print(lowercase					)







def     __lowerCAmelCase		(		lowercase    :    str		,				lowercase    :    str					)      ->		str:


    """simple docstring"""





    return translate_message(lowercase		,				lowercase		,				"encrypt"					)







def     __lowerCAmelCase		(		lowercase    :    str		,				lowercase    :    str					)      ->		str:


    """simple docstring"""





    return translate_message(lowercase		,				lowercase		,				"decrypt"					)







def     __lowerCAmelCase		(		lowercase    :    str		,				lowercase    :    str		,				lowercase    :    str					)      ->		str:


    """simple docstring"""





    snake_case       : List[Any]    =       []
    snake_case       : List[str]    =       0
    snake_case       : List[Any]    =       key.upper()

    for symbol in message:
        snake_case       : Optional[int]    =       LETTERS.find(symbol.upper()					)
        if num != -1:
            if mode == "encrypt":
                num += LETTERS.find(key[key_index]					)
            elif mode == "decrypt":
                num -= LETTERS.find(key[key_index]					)

            num %= len(lowercase					)

            if symbol.isupper():
                translated.append(LETTERS[num]					)
            elif symbol.islower():
                translated.append(LETTERS[num].lower()					)

            key_index += 1
            if key_index == len(lowercase					):
                snake_case       : List[str]    =       0
        else:
            translated.append(lowercase					)
    return "".join(lowercase					)


if __name__ == "__main__":
  main()





