


import copy
import os

import cva
import numpy as np
from matplotlib import pyplot as plt


class 					lowerCAmelCase_ :




						def __init__(	self						:   Dict						)      ->Union[str, Any]:






									"""simple docstring"""






									a__ :Dict						  =    ""
									a__ :Optional[int]						  =    ""
									a__ :Dict						  =    []
									a__ :Union[str, Any]						  =    0
									a__ :Optional[int]						  =    256
									a__ :Tuple						  =    0
									a__ :Tuple						  =    0
									a__ :Any						  =    0
									a__ :List[Any]						  =    0




						def  _snake_case					(	self						:   Tuple   ,     __A						:   Tuple						)      ->List[str]:






									"""simple docstring"""






									a__ :Tuple						  =    cva.imread(__A   ,     0						)
									a__ :Optional[int]						  =    copy.deepcopy(self.img						)
									a__  ,  a__  ,  a__ :Any						  =    plt.hist(self.img.ravel()   ,     256   ,     [0, 256]   ,     label="x"						)
									a__ :int						  =    np.sum(__A						)
									for i in range(len(__A						)						):
												a__ :str						  =    x[i] / self.k
												self.sk += prk
												a__ :Any						  =    (self.L - 1) * self.sk
												if self.rem != 0:
															a__ :Any						  =    int(last % last						)
												a__ :Optional[int]						  =    int(last + 1 if self.rem >= 0.5 else last						)
												self.last_list.append(__A						)
												a__ :str						  =    int(np.ma.count(self.img						) / self.img[1].size						)
												a__ :Optional[Any]						  =    self.img[1].size
									for i in range(self.number_of_cols						):
												for j in range(self.number_of_rows						):
															a__ :int						  =    self.img[j][i]
															if num != self.last_list[num]:
																		a__ :Any						  =    self.last_list[num]
									cva.imwrite("output_data/output.jpg"   ,     self.img						)




						def  _snake_case					(	self						:   Union[str, Any]						)      ->Tuple:






									"""simple docstring"""






									plt.hist(self.img.ravel()   ,     256   ,     [0, 256]						)






						def  _snake_case					(	self						:   int						)      ->List[Any]:






									"""simple docstring"""






									cva.imshow("Output-Image"   ,     self.img						)
									cva.imshow("Input-Image"   ,     self.original_image						)
									cva.waitKey(5000						)
									cva.destroyAllWindows()


if __name__ == "__main__":
		snake_case__			 =						os.path.join(os.path.basename(__file__), '''image_data/input.jpg''')
		snake_case__			 =						ConstantStretch()
		stretcher.stretch(file_path)
		stretcher.plot_histogram()
		stretcher.show_image()






class 					lowerCAmelCase_ :




						def __init__(	self						:   Optional[int]						)      ->Optional[Any]:






									"""simple docstring"""






									a__ :Tuple						  =    {}




						def  _snake_case					(	self						:   Tuple						)      ->None:






									"""simple docstring"""






									print(self.vertex						)
									for i in self.vertex:
												print(__A   ,     " -> "   ,     " -> ".join([str(__A						) for j in self.vertex[i]]						)						)




						def  _snake_case					(	self						:   Optional[int]   ,     __A						:   int   ,     __A						:   int						)      ->None:






									"""simple docstring"""






									if from_vertex in self.vertex:
												self.vertex[from_vertex].append(__A						)
									else:
												# else make a new vertex
												a__ :Any						  =    [to_vertex]




						def  _snake_case					(	self						:   Optional[int]						)      ->None:






									"""simple docstring"""






									a__ :List[Any]						  =    [False] * len(self.vertex						)

									# call the recursive helper function
									for i in range(len(self.vertex						)						):
												if not visited[i]:
															self.dfs_recursive(__A   ,     __A						)






						def  _snake_case					(	self						:   Union[str, Any]   ,     __A						:   int   ,     __A						:   list						)      ->None:






									"""simple docstring"""






									a__ :Dict						  =    True

									print(__A   ,     end=" "						)

									# Recur for all the vertices that are adjacent to this node
									for i in self.vertex:
												if not visited[i]:
															self.dfs_recursive(__A   ,     __A						)


if __name__ == "__main__":
		snake_case__			 =						Graph()
		g.add_edge(0, 1)
		g.add_edge(0, 2)
		g.add_edge(1, 2)
		g.add_edge(2, 0)
		g.add_edge(2, 3)
		g.add_edge(3, 3)

		g.print_graph()
		print('''DFS:''')
		g.dfs()

		# OUTPUT:
		# 0  ->  1 -> 2
		# 1  ->  2
		# 2  ->  0 -> 3
		# 3  ->  3
		# DFS:
		#  0 1 2 3


