



"""simple docstring"""







import copy
import os

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







class       UpperCamelCase__   :




      """simple docstring"""




      def __init__(      self				:      Dict       ):
        lowerCAmelCase_   :				str								= ''
        lowerCAmelCase_   :				int								= ''
        lowerCAmelCase_   :				int								= []
        lowerCAmelCase_   :				List[Any]								= 0
        lowerCAmelCase_   :				int								= 2_5_6
        lowerCAmelCase_   :				Union[str, Any]								= 0
        lowerCAmelCase_   :				Optional[Any]								= 0
        lowerCAmelCase_   :				Optional[Any]								= 0
        lowerCAmelCase_   :				int								= 0



      def      SCREAMING_SNAKE_CASE__ (      self				:      List[str]    ,			SCREAMING_SNAKE_CASE_				:      List[Any]       ):
        lowerCAmelCase_   :				str								= cva.imread(SCREAMING_SNAKE_CASE_    ,			0       )
        lowerCAmelCase_   :				Dict								= copy.deepcopy(self.img       )
        lowerCAmelCase_						,lowerCAmelCase_						,lowerCAmelCase_   :				Optional[Any]								= plt.hist(self.img.ravel()    ,			2_5_6    ,			[0, 2_5_6]    ,			label='x'       )
        lowerCAmelCase_   :				Dict								= np.sum(SCREAMING_SNAKE_CASE_       )
        for i in range(len(SCREAMING_SNAKE_CASE_       )       ):
          lowerCAmelCase_   :				Dict								= x[i] / self.k
          self.sk += prk
          lowerCAmelCase_   :				int								= (self.L - 1) * self.sk
          if self.rem != 0:
            lowerCAmelCase_   :				Tuple								= int(last % last       )
          lowerCAmelCase_   :				Optional[int]								= int(last + 1 if self.rem >= 0.5 else last       )
          self.last_list.append(SCREAMING_SNAKE_CASE_       )
          lowerCAmelCase_   :				Optional[Any]								= int(np.ma.count(self.img       ) / self.img[1].size       )
          lowerCAmelCase_   :				int								= self.img[1].size
        for i in range(self.number_of_cols       ):
          for j in range(self.number_of_rows       ):
            lowerCAmelCase_   :				Optional[int]								= self.img[j][i]
            if num != self.last_list[num]:
              lowerCAmelCase_   :				int								= self.last_list[num]
        cva.imwrite('output_data/output.jpg'    ,			self.img       )



      def      SCREAMING_SNAKE_CASE__ (      self				:      Union[str, Any]       ):
        plt.hist(self.img.ravel()    ,			2_5_6    ,			[0, 2_5_6]       )





      def      SCREAMING_SNAKE_CASE__ (      self				:      Optional[Any]       ):
        cva.imshow('Output-Image'    ,			self.img       )
        cva.imshow('Input-Image'    ,			self.original_image       )
        cva.waitKey(5_0_0_0       )
        cva.destroyAllWindows()


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










"""simple docstring"""







import random

def 				UpperCamelCase_    (    lowerCAmelCase__      :				int    ,   lowerCAmelCase__      :				float    ,   lowerCAmelCase__      :				bool = False						)						->   dict:

  """simple docstring"""




  lowerCAmelCase_   :				dict								= {i: [] for i in range(lowerCAmelCase__						)}

  # if probability is greater or equal than 1, then generate a complete graph
  if probability >= 1:
    return complete_graph(lowerCAmelCase__						)
  # if probability is lower or equal than 0, then return a graph without edges
  if probability <= 0:
    return graph

  # for each couple of nodes, add an edge from u to v
  # if the number randomly generated is greater than probability probability
  for i in range(lowerCAmelCase__						):
    for j in range(i + 1    ,   lowerCAmelCase__						):
      if random.random() < probability:
        graph[i].append(lowerCAmelCase__						)
        if not directed:
          # if the graph is undirected, add an edge in from j to i, either
          graph[j].append(lowerCAmelCase__						)
  return graph

def 				UpperCamelCase_    (    lowerCAmelCase__      :				int						)						->   dict:

  """simple docstring"""




  return {
      i: [j for j in range(lowerCAmelCase__						) if i != j] for i in range(lowerCAmelCase__						)
  }


if __name__ == "__main__":
     import doctest

     doctest.testmod()





