




from __future__ import annotations

from enum import Enum


class        UpperCAmelCase__				(							UpperCAmelCase__				):



     '''simple docstring'''
     _SCREAMING_SNAKE_CASE      :					Union[str, Any]     					=    24
     _SCREAMING_SNAKE_CASE      :					Any     					=    21
     _SCREAMING_SNAKE_CASE      :					Optional[int]     					=    18
     _SCREAMING_SNAKE_CASE      :					Any     					=    15
     _SCREAMING_SNAKE_CASE      :					Union[str, Any]     					=    12
     _SCREAMING_SNAKE_CASE      :					str     					=    9
     _SCREAMING_SNAKE_CASE      :					int     					=    6
     _SCREAMING_SNAKE_CASE      :					int     					=    3
     _SCREAMING_SNAKE_CASE      :					Union[str, Any]     					=    2
     _SCREAMING_SNAKE_CASE      :					Any     					=    1
     _SCREAMING_SNAKE_CASE      :					Optional[int]     					=    -1
     _SCREAMING_SNAKE_CASE      :					List[str]     					=    -2
     _SCREAMING_SNAKE_CASE      :					List[Any]     					=    -3
     _SCREAMING_SNAKE_CASE      :					List[str]     					=    -6
     _SCREAMING_SNAKE_CASE      :					Dict     					=    -9
     _SCREAMING_SNAKE_CASE      :					str     					=    -12
     _SCREAMING_SNAKE_CASE      :					str     					=    -15
     _SCREAMING_SNAKE_CASE      :					Tuple     					=    -18
     _SCREAMING_SNAKE_CASE      :					List[Any]     					=    -21
     _SCREAMING_SNAKE_CASE      :					Union[str, Any]     					=    -24



class        UpperCAmelCase__				(							UpperCAmelCase__				):



     '''simple docstring'''
     _SCREAMING_SNAKE_CASE      :					Dict     					=    8
     _SCREAMING_SNAKE_CASE      :					Optional[Any]     					=    7
     _SCREAMING_SNAKE_CASE      :					List[Any]     					=    6
     _SCREAMING_SNAKE_CASE      :					Tuple     					=    5
     _SCREAMING_SNAKE_CASE      :					List[Any]     					=    4
     _SCREAMING_SNAKE_CASE      :					int     					=    3
     _SCREAMING_SNAKE_CASE      :					Optional[int]     					=    2
     _SCREAMING_SNAKE_CASE      :					int     					=    1





def 							lowerCamelCase    (							UpperCAmelCase_	:      float   ,       UpperCAmelCase_	:      str | SIUnit   ,       UpperCAmelCase_	:      str | SIUnit   ,       )->			float:

       """simple docstring"""




       if isinstance(UpperCAmelCase_   ,       UpperCAmelCase_      ):
              a			   =SIUnit[known_prefix.lower()]
       if isinstance(UpperCAmelCase_   ,       UpperCAmelCase_      ):
              a			   =SIUnit[unknown_prefix.lower()]
       a			   =known_amount * (
           10 ** (known_prefix.value - unknown_prefix.value)
       )
       return unknown_amount





def 							lowerCamelCase    (							UpperCAmelCase_	:      float   ,       UpperCAmelCase_	:      str | BinaryUnit   ,       UpperCAmelCase_	:      str | BinaryUnit   ,       )->			float:

       """simple docstring"""




       if isinstance(UpperCAmelCase_   ,       UpperCAmelCase_      ):
              a			   =BinaryUnit[known_prefix.lower()]
       if isinstance(UpperCAmelCase_   ,       UpperCAmelCase_      ):
              a			   =BinaryUnit[unknown_prefix.lower()]
       a			   =known_amount * (
           2 ** ((known_prefix.value - unknown_prefix.value) * 10)
       )
       return unknown_amount


if __name__ == "__main__":
    import doctest

    doctest.testmod()






import math
import os

import cva
import numpy as np

_lowerCamelCase							=      255.0





def 							lowerCamelCase    (							UpperCAmelCase_	:      float   ,       UpperCAmelCase_	:      float      )->			float:

       """simple docstring"""




       a			   =np.mean((original - contrast) ** 2      )
       if mse == 0:
              return 100

       return 20 * math.logaa(PIXEL_MAX / math.sqrt(UpperCAmelCase_      )      )





def 							lowerCamelCase    (							)->			None:

       """simple docstring"""




       a			   =os.path.dirname(os.path.realpath(UpperCAmelCase_      )      )
       # Loading images (original image and compressed image)
       a			   =cva.imread(os.path.join(UpperCAmelCase_   ,       """image_data/original_image.png"""      )      )
       a			   =cva.imread(os.path.join(UpperCAmelCase_   ,       """image_data/compressed_image.png"""      )   ,       1      )

       a			   =cva.imread(os.path.join(UpperCAmelCase_   ,       """image_data/PSNR-example-base.png"""      )      )
       a			   =cva.imread(
           os.path.join(UpperCAmelCase_   ,       """image_data/PSNR-example-comp-10.jpg"""      )   ,       1      )

       # Value expected: 29.73dB
       print("""-- First Test --"""      )
       print(F'''PSNR value is {peak_signal_to_noise_ratio(UpperCAmelCase_   ,       UpperCAmelCase_      )} dB'''      )

       # # Value expected: 31.53dB (Wikipedia Example)
       print("""\n-- Second Test --"""      )
       print(F'''PSNR value is {peak_signal_to_noise_ratio(UpperCAmelCase_   ,       UpperCAmelCase_      )} dB'''      )


if __name__ == "__main__":
    main()
