



"""simple docstring"""






from cva import destroyAllWindows, imread, imshow, waitKey






def 	snake_case__  (						__lowerCamelCase							:       List[Any]				,						__lowerCamelCase							:       int      ):
			"""simple docstring"""
			lowerCamelCase__      ,  lowerCamelCase__						:						Union[str, Any]						      =img.shape[0], img.shape[1]

			def to_grayscale(__lowerCamelCase							:       Union[str, Any]				,						__lowerCamelCase							:       List[str]				,						__lowerCamelCase							:       Optional[Any]      ):
						return 0.21_26 * red + 0.5_87 * green + 0.1_14 * blue

			def normalize(__lowerCamelCase							:       Tuple      ):
						return min(__lowerCamelCase				,						255      )

			for i in range(__lowerCamelCase      ):
						for j in range(__lowerCamelCase      ):
									lowerCamelCase__						:						str						      =int(to_grayscale(*img[i][j]      )      )
									lowerCamelCase__						:						Tuple						      =[
									    normalize(__lowerCamelCase      ),
									    normalize(greyscale + factor      ),
									    normalize(greyscale + 2 * factor      ),
									]

			return img


if __name__ == "__main__":
		# read original image
		_lowercase					:					List[str] 		=		{
		    percentage: imread("image_data/lena.jpg", 1) for percentage in (1_0, 2_0, 3_0, 4_0)
		}

		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()








from .balanced_parentheses import balanced_parentheses
from .stack import Stack

def 			__SCREAMING_SNAKE_CASE		(		UpperCamelCase		:      str	)     ->	int:



	"""simple docstring"""






	return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(UpperCamelCase     ,					-1	)

def 			__SCREAMING_SNAKE_CASE		(		UpperCamelCase		:      str	)     ->	str:



	"""simple docstring"""






	if not balanced_parentheses(UpperCamelCase	):
		raise ValueError("""Mismatched parentheses"""	)
	a_     			=   Stack()
	a_     			=   []
	for char in expression_str:
		if char.isalpha() or char.isdigit():
			postfix.append(UpperCamelCase	)
		elif char == "(":
			stack.push(UpperCamelCase	)
		elif char == ")":
			while not stack.is_empty() and stack.peek() != "(":
				postfix.append(stack.pop()	)
			stack.pop()
		else:
			while not stack.is_empty() and precedence(UpperCamelCase	) <= precedence(stack.peek()	):
				postfix.append(stack.pop()	)
			stack.push(UpperCamelCase	)
	while not stack.is_empty():
		postfix.append(stack.pop()	)
	return " ".join(UpperCamelCase	)


if __name__ == "__main__":
			from doctest import testmod

			testmod()
			_A							     =       'a+b*(c^d-e)^(f+g*h)-i'

			print('Infix to Postfix Notation demonstration:\n')
			print('Infix notation: ' + expression)
			print('Postfix notation: ' + infix_to_postfix(expression))