
"""simple docstring"""





import copy
import os

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






class     _UpperCAmelCase:



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






							'''simple docstring'''
							_UpperCamelCase							 =  ''
							_UpperCamelCase							 =  ''
							_UpperCamelCase							 =  []
							_UpperCamelCase							 =  0
							_UpperCamelCase							 =  2_56
							_UpperCamelCase							 =  0
							_UpperCamelCase							 =  0
							_UpperCamelCase							 =  0
							_UpperCamelCase							 =  0



		def 						UpperCAmelCase							(					self				,		__a)       ->       List[Any]:






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



		def 						UpperCAmelCase							(					self)       ->       str:






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




		def 						UpperCAmelCase							(					self)       ->       List[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__":
				_a														=		os.path.join(os.path.basename(__file__), """image_data/input.jpg""")
				_a														=		ConstantStretch()
				stretcher.stretch(file_path)
				stretcher.plot_histogram()
				stretcher.show_image()










# Lint as: python3
import itertools
import os
import re


lowerCamelCase											=       re.compile(R'([A-Z]+)([A-Z][a-z])')
lowerCamelCase											=       re.compile(R'([a-z\d])([A-Z])')

lowerCamelCase											=       re.compile(R'(?<!_)_(?!_)')
lowerCamelCase											=       re.compile(R'(_{2,})')

lowerCamelCase											=       R'^\w+(\.\w+)*$'

lowerCamelCase											=       R'<>:/\|?*'




def 	a_      (    SCREAMING_SNAKE_CASE__					:      Tuple     ):
       '''simple docstring'''





       _lowerCamelCase       :		List[str]		=_uppercase_uppercase_re.sub(r'\1_\2'		,			SCREAMING_SNAKE_CASE__     )
       _lowerCamelCase       :		List[Any]		=_lowercase_uppercase_re.sub(r'\1_\2'		,			SCREAMING_SNAKE_CASE__     )
       return name.lower()




def 	a_      (    SCREAMING_SNAKE_CASE__					:      Union[str, Any]     ):
       '''simple docstring'''





       _lowerCamelCase       :		Tuple		=_single_underscore_re.split(SCREAMING_SNAKE_CASE__     )
       _lowerCamelCase       :		Tuple		=[_multiple_underscores_re.split(SCREAMING_SNAKE_CASE__     ) for n in name]
       return "".join(n.capitalize() for n in itertools.chain.from_iterable(SCREAMING_SNAKE_CASE__     ) if n != ''     )




def 	a_      (    SCREAMING_SNAKE_CASE__					:      List[Any]     ):
       '''simple docstring'''





       if os.path.basename(SCREAMING_SNAKE_CASE__     ) != name:
              raise ValueError(F'''Should be a dataset name, not a path: {name}'''     )
       return camelcase_to_snakecase(SCREAMING_SNAKE_CASE__     )




def 	a_      (    SCREAMING_SNAKE_CASE__					:      Union[str, Any]		,			SCREAMING_SNAKE_CASE__					:      Optional[int]     ):
       '''simple docstring'''





       if os.path.basename(SCREAMING_SNAKE_CASE__     ) != name:
              raise ValueError(F'''Should be a dataset name, not a path: {name}'''     )
       if not re.match(_split_re		,			SCREAMING_SNAKE_CASE__     ):
              raise ValueError(F'''Split name should match \'{_split_re}\'\' but got \'{split}\'.'''     )
       return F'''{filename_prefix_for_name(SCREAMING_SNAKE_CASE__     )}-{split}'''




def 	a_      (    SCREAMING_SNAKE_CASE__					:      Optional[int]		,			SCREAMING_SNAKE_CASE__					:      List[Any]		,			SCREAMING_SNAKE_CASE__					:      Optional[Any]		,			SCREAMING_SNAKE_CASE__					:      int=None     ):
       '''simple docstring'''





       _lowerCamelCase       :		Union[str, Any]		=filename_prefix_for_split(SCREAMING_SNAKE_CASE__		,			SCREAMING_SNAKE_CASE__     )
       if filetype_suffix:
              prefix += F'''.{filetype_suffix}'''
       _lowerCamelCase       :		Optional[Any]		=os.path.join(SCREAMING_SNAKE_CASE__		,			SCREAMING_SNAKE_CASE__     )
       return F'''{filepath}*'''




def 	a_      (    SCREAMING_SNAKE_CASE__					:      Tuple		,			SCREAMING_SNAKE_CASE__					:      List[str]		,			SCREAMING_SNAKE_CASE__					:      str		,			SCREAMING_SNAKE_CASE__					:      List[str]=None		,			SCREAMING_SNAKE_CASE__					:      Optional[Any]=None     ):
       '''simple docstring'''





       _lowerCamelCase       :		Dict		=filename_prefix_for_split(SCREAMING_SNAKE_CASE__		,			SCREAMING_SNAKE_CASE__     )
       _lowerCamelCase       :		Union[str, Any]		=os.path.join(SCREAMING_SNAKE_CASE__		,			SCREAMING_SNAKE_CASE__     )

       if shard_lengths:
              _lowerCamelCase       :		Union[str, Any]		=len(SCREAMING_SNAKE_CASE__     )
              _lowerCamelCase       :		Optional[int]		=[F'''{prefix}-{shard_id:05d}-of-{num_shards:05d}''' for shard_id in range(SCREAMING_SNAKE_CASE__     )]
              if filetype_suffix:
                     _lowerCamelCase       :		List[Any]		=[filename + F'''.{filetype_suffix}''' for filename in filenames]
              return filenames
       else:
              _lowerCamelCase       :		Any		=prefix
              if filetype_suffix:
                     filename += F'''.{filetype_suffix}'''
              return [filename]


