




import copy
import os

import cva
import numpy as np
from matplotlib import pyplot as plt
class 		UpperCAmelCase   :







						'''simple docstring'''





						def __init__(						self							:     List[str]						):






							"""simple docstring"""






							snake_case_		    =     ""
							snake_case_		    =     ""
							snake_case_		    =     []
							snake_case_		    =     0
							snake_case_		    =     2_56
							snake_case_		    =     0
							snake_case_		    =     0
							snake_case_		    =     0
							snake_case_		    =     0






						def        snake_case__						(						self							:     Any       ,	__lowercase							:     Optional[int]						):






							"""simple docstring"""






							snake_case_		    =     cva.imread(__lowercase       ,	0						)
							snake_case_		    =     copy.deepcopy(self.img						)
							snake_case_    ,      snake_case_    ,      snake_case_		    =     plt.hist(self.img.ravel()       ,	2_56       ,	[0, 2_56]       ,	label="x"						)
							snake_case_		    =     np.sum(__lowercase						)
							for i in range(len(__lowercase						)						):
								snake_case_		    =     x[i] / self.k
								self.sk += prk
								snake_case_		    =     (self.L - 1) * self.sk
								if self.rem != 0:
									snake_case_		    =     int(last % last						)
								snake_case_		    =     int(last + 1 if self.rem >= 0.5 else last						)
								self.last_list.append(__lowercase						)
								snake_case_		    =     int(np.ma.count(self.img						) / self.img[1].size						)
								snake_case_		    =     self.img[1].size
							for i in range(self.number_of_cols						):
								for j in range(self.number_of_rows						):
									snake_case_		    =     self.img[j][i]
									if num != self.last_list[num]:
										snake_case_		    =     self.last_list[num]
							cva.imwrite("output_data/output.jpg"       ,	self.img						)






						def        snake_case__						(						self							:     Tuple						):






							"""simple docstring"""






							plt.hist(self.img.ravel()       ,	2_56       ,	[0, 2_56]						)






						def        snake_case__						(						self							:     Any						):






							"""simple docstring"""






							cva.imshow("Output-Image"       ,	self.img						)
							cva.imshow("Input-Image"       ,	self.original_image						)
							cva.waitKey(50_00						)
							cva.destroyAllWindows()


if __name__ == "__main__":
		lowercase__				:     Optional[Any] 		=						os.path.join(os.path.basename(__file__), "image_data/input.jpg")
		lowercase__				:     Any 		=						ConstantStretch()
		stretcher.stretch(file_path)
		stretcher.plot_histogram()
		stretcher.show_image()






def 						lowerCamelCase__    (		_A     ,	_A							):







	'''simple docstring'''





	_enforce_args(_A     ,	_A							)
	if n == 0:
		return 0
	snake_case_		    =     float("-inf"							)
	for i in range(1     ,	n + 1							):
		snake_case_		    =     max(
		    _A     ,	prices[i - 1] + naive_cut_rod_recursive(n - i     ,	_A							)							)

	return max_revue


def 						lowerCamelCase__    (		_A     ,	_A							):







	'''simple docstring'''





	_enforce_args(_A     ,	_A							)
	snake_case_		    =     [float("-inf"							) for _ in range(n + 1							)]
	return _top_down_cut_rod_recursive(_A     ,	_A     ,	_A							)


def 						lowerCamelCase__    (		_A     ,	_A     ,	_A							):







	'''simple docstring'''





	if max_rev[n] >= 0:
		return max_rev[n]
	elif n == 0:
		return 0
	else:
		snake_case_		    =     float("-inf"							)
		for i in range(1     ,	n + 1							):
			snake_case_		    =     max(
			    _A     ,	prices[i - 1] + _top_down_cut_rod_recursive(n - i     ,	_A     ,	_A							)     ,	)

		snake_case_		    =     max_revenue

	return max_rev[n]


def 						lowerCamelCase__    (		_A     ,	_A							):







	'''simple docstring'''





	_enforce_args(_A     ,	_A							)

	# length(max_rev) = n + 1, to accommodate for the revenue obtainable from a rod of
	# length 0.
	snake_case_		    =     [float("-inf"							) for _ in range(n + 1							)]
	snake_case_		    =     0

	for i in range(1     ,	n + 1							):
		snake_case_		    =     max_rev[i]
		for j in range(1     ,	i + 1							):
			snake_case_		    =     max(_A     ,	prices[j - 1] + max_rev[i - j]							)

		snake_case_		    =     max_revenue_i

	return max_rev[n]


def 						lowerCamelCase__    (		_A     ,	_A							):







	'''simple docstring'''





	if n < 0:
		snake_case_		    =     f"n must be greater than or equal to 0. Got n = {n}"
		raise ValueError(_A							)

	if n > len(_A							):
		snake_case_		    =     (
		    "Each integral piece of rod must have a corresponding price. "
		    f"Got n = {n} but length of prices = {len(_A							)}"
		)
		raise ValueError(_A							)


def 						lowerCamelCase__    (		):







	'''simple docstring'''





	snake_case_		    =     [6, 10, 12, 15, 20, 23]
	snake_case_		    =     len(_A							)

	# the best revenue comes from cutting the rod into 6 pieces, each
	# of length 1 resulting in a revenue of 6 * 6 = 36.
	snake_case_		    =     36

	snake_case_		    =     top_down_cut_rod(_A     ,	_A							)
	snake_case_		    =     bottom_up_cut_rod(_A     ,	_A							)
	snake_case_		    =     naive_cut_rod_recursive(_A     ,	_A							)

	assert expected_max_revenue == max_rev_top_down
	assert max_rev_top_down == max_rev_bottom_up
	assert max_rev_bottom_up == max_rev_naive


if __name__ == "__main__":
		main()
