
'''simple docstring'''







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

from digital_image_processing.filters.convolve import img_convolve

def 				_snake_case (		lowercase						)       ->       List[str]:
				__a       :     Optional[int]								=	np.array([[-1, 0, 1], [-2, 0, 2], [-1, 0, 1]]						)
				__a       :     List[str]								=	np.array([[1, 2, 1], [0, 0, 0], [-1, -2, -1]]						)

				__a       :     str								=	np.abs(img_convolve(lowercase			,    lowercase						)						)
				__a       :     int								=	np.abs(img_convolve(lowercase			,    lowercase						)						)
				# modify the pix within [0, 255]
				__a       :     List[Any]								=	dst_x * 2_5_5 / np.max(lowercase						)
				__a       :     Dict								=	dst_y * 2_5_5 / np.max(lowercase						)

				__a       :     int								=	np.sqrt((np.square(lowercase						)) + (np.square(lowercase						))						)
				__a       :     int								=	dst_xy * 2_5_5 / np.max(lowercase						)
				__a       :     Optional[int]								=	dst_xy.astype(np.uinta						)

				__a       :     Optional[int]								=	np.arctana(lowercase			,    lowercase						)
				return dst, theta


if __name__ == "__main__":
					# read original image
					__SCREAMING_SNAKE_CASE		:  int        =      imread('../image_data/lena.jpg')
					# turn image in gray scale value
					__SCREAMING_SNAKE_CASE		:  Any        =      cvtColor(img, COLOR_BGR2GRAY)

					__SCREAMING_SNAKE_CASE   ,       __SCREAMING_SNAKE_CASE		:  Optional[Any]        =      sobel_filter(gray)

					# show result images
					imshow('sobel filter', sobel_grad)
					imshow('sobel theta', sobel_theta)
					waitKey(0)

'''simple docstring'''







def 				_snake_case (		lowercase = 2_0						)       ->       int:

				try:
								__a       :     Optional[Any]								=	int(lowercase						)
				except (TypeError, ValueError):
								raise TypeError("""Parameter n must be int or castable to int."""						)
				if n <= 0:
								raise ValueError("""Parameter n must be greater than or equal to one."""						)
				__a       :     List[Any]								=	0
				while 1:
								i += n * (n - 1)
								__a       :     Union[str, Any]								=	0
								for j in range(2			,    lowercase						):
												if i % j != 0:
																__a       :     Any								=	1
																break
								if nfound == 0:
												if i == 0:
																__a       :     List[str]								=	1
												return i
				return None


if __name__ == "__main__":
					print(f'''{solution() = }''')