





'''simple docstring'''




import numpy as np
from cva import destroyAllWindows, imread, imshow, waitKey






class 							__snake_case    :





	def __init__(		self			,					UpperCamelCase_			,					UpperCamelCase_		)			->		List[str]:
		snake_case__  					=      0
		# max greyscale value for #FFFFFF
		snake_case__  					=      int(self.get_greyscale(255			,					255			,					255		)		)

		if not self.min_threshold < threshold < self.max_threshold:
			snake_case__  					=      F'''Factor value should be from 0 to {self.max_threshold}'''
			raise ValueError(UpperCamelCase_		)

		snake_case__  					=      input_img
		snake_case__  					=      threshold
		snake_case__					,     snake_case__  					=      self.input_img.shape[1], self.input_img.shape[0]

		# error table size (+4 columns and +1 row) greater than input image because of
		# lack of if statements
		snake_case__  					=      [
		    [0 for _ in range(self.height + 4		)] for __ in range(self.width + 1		)
		]
		snake_case__  					=      np.ones((self.width, self.height, 3)			,					np.uinta		) * 255





	@classmethod
	def      _snake_case      (		cls			,					UpperCamelCase_			,					UpperCamelCase_			,					UpperCamelCase_		)			->		float:
		return 0.1_1_4 * blue + 0.5_8_7 * green + 0.2_1_2_6 * red





	def      _snake_case      (		self		)			->		None:
		for y in range(self.height		):
			for x in range(self.width		):
				snake_case__  					=      int(self.get_greyscale(*self.input_img[y][x]		)		)
				if self.threshold > greyscale + self.error_table[y][x]:
					snake_case__  					=      (0, 0, 0)
					snake_case__  					=      greyscale + self.error_table[x][y]
				else:
					snake_case__  					=      (255, 255, 255)
					snake_case__  					=      greyscale + self.error_table[x][y] - 255
				self.error_table[y][x + 1] += int(8 / 32 * current_error		)
				self.error_table[y][x + 2] += int(4 / 32 * current_error		)
				self.error_table[y + 1][x] += int(8 / 32 * current_error		)
				self.error_table[y + 1][x + 1] += int(4 / 32 * current_error		)
				self.error_table[y + 1][x + 2] += int(2 / 32 * current_error		)
				self.error_table[y + 1][x - 1] += int(4 / 32 * current_error		)
				self.error_table[y + 1][x - 2] += int(2 / 32 * current_error		)


if __name__ == "__main__":
			# create Burke's instances with original images in greyscale
			a__				: Union[str, Any]									=    [
			    Burkes(imread('''image_data/lena.jpg''', 1), threshold)
			    for threshold in (1, 126, 130, 140)
			]

			for burkes in burkes_instances:
						burkes.process()

			for burkes in burkes_instances:
						imshow(
						    f"""Original image with dithering threshold: {burkes.threshold}""",
						    burkes.output_img,
						)

			waitKey(0)
			destroyAllWindows()










'''simple docstring'''




def 	__lowerCamelCase (  UpperCAmelCase_       )      ->str:
	snake_case__  					=      len(UpperCAmelCase_       )
	for i in range(length - 1       ):
		snake_case__  					=      False
		for j in range(length - 1 - i       ):
			if collection[j] > collection[j + 1]:
				snake_case__  					=      True
				snake_case__					,     snake_case__  					=      collection[j + 1], collection[j]
		if not swapped:
			break  # Stop iteration if the collection is sorted.
	return collection


if __name__ == "__main__":
			import doctest
			import time

			doctest.testmod()

			a__				: Dict									=    input('''Enter numbers separated by a comma:''').strip()
			a__				: Dict									=    [int(item) for item in user_input.split(''',''')]
			a__				: Tuple									=    time.process_time()
			print(*bubble_sort(unsorted), sep=''',''')
			print(f"""Processing time: {(time.process_time() - start)%1e9 + 7}""")



