




from cva import destroyAllWindows, imread, imshow, waitKey

def 						lowercase_ (						_UpperCAmelCase					, _UpperCAmelCase		):




	"""simple docstring"""






	A_					:			int						=						img.shape[0], img.shape[1]

	def to_grayscale(_UpperCAmelCase					, _UpperCAmelCase					, _UpperCAmelCase		):
		return 0.2126 * red + 0.587 * green + 0.114 * blue

	def normalize(_UpperCAmelCase		):
		return min(_UpperCAmelCase					, 255		)

	for i in range(_UpperCAmelCase		):
		for j in range(_UpperCAmelCase		):
			A_					:			Dict						=						int(to_grayscale(*img[i][j]		)		)
			A_					:			Optional[int]						=						[
			    normalize(_UpperCAmelCase		),
			    normalize(greyscale + factor		),
			    normalize(greyscale + 2 * factor		),
			]

	return img


if __name__ == "__main__":
		# read original image
		_lowerCamelCase					:     int				       =    {
		    percentage: imread('image_data/lena.jpg', 1) for percentage in (10, 20, 30, 40)
		}

		for percentage, img in images.items():
				make_sepia(img, percentage)

		for percentage, img in images.items():
				imshow(f'Original image with sepia (factor: {percentage})', img)

		waitKey(0)
		destroyAllWindows()











"""simple docstring"""

def 						lowercase_ (						_UpperCAmelCase		):




	"""simple docstring"""






	A_					:			Optional[int]						=						9

	while num > 0:
		if num % 10 != digit:
			return False
		num //= 100
		digit -= 1

	return True

def 						lowercase_ (						):




	"""simple docstring"""






	A_					:			Dict						=						1_3890_2663

	while not is_square_form(num * num		):
		if num % 10 == 3:
			num -= 6  # (3 - 6) % 10 = 7
		else:
			num -= 4  # (7 - 4) % 10 = 3

	return num * 10


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





