






import math
import sys

import cva
import numpy as np







def      snake_case		(							UpperCAmelCase	:       np.ndarray,						UpperCAmelCase	:       float   ):
    # For applying gaussian function for each element in matrix.
    A	 =      math.sqrt(_lowerCamelCase   )
    A	 =      1 / (sigma * math.sqrt(2 * math.pi   ))
    return cons * np.exp(-((img / sigma) ** 2) * 0.5   )







def      snake_case		(							UpperCAmelCase	:       np.ndarray,						UpperCAmelCase	:       int,						UpperCAmelCase	:       int,						UpperCAmelCase	:       int   ):
    A	 =      kernel_size // 2
    return img[x - half : x + half + 1, y - half : y + half + 1]







def      snake_case		(							UpperCAmelCase	:       int,						UpperCAmelCase	:       float   ):
    # Creates a gaussian kernel of given dimension.
    A	 =      np.zeros((kernel_size, kernel_size)   )
    for i in range(0,						_lowerCamelCase   ):
        for j in range(0,						_lowerCamelCase   ):
            A	 =      math.sqrt(
                abs(i - kernel_size // 2   ) ** 2 + abs(j - kernel_size // 2   ) ** 2   )
    return vec_gaussian(_lowerCamelCase,						_lowerCamelCase   )







def      snake_case		(							UpperCAmelCase	:       np.ndarray,						UpperCAmelCase	:       float,						UpperCAmelCase	:       float,						UpperCAmelCase	:       int,						):
    A	 =      np.zeros(img.shape   )
    A	 =      get_gauss_kernel(_lowerCamelCase,						_lowerCamelCase   )
    A	 =      img.shape
    for i in range(kernel_size // 2,						size_x - kernel_size // 2   ):
        for j in range(kernel_size // 2,						size_y - kernel_size // 2   ):
            A	 =      get_slice(_lowerCamelCase,						_lowerCamelCase,						_lowerCamelCase,						_lowerCamelCase   )
            A	 =      img_s - img_s[kernel_size // 2, kernel_size // 2]
            A	 =      vec_gaussian(_lowerCamelCase,						_lowerCamelCase   )
            A	 =      np.multiply(_lowerCamelCase,						_lowerCamelCase   )
            A	 =      np.multiply(_lowerCamelCase,						_lowerCamelCase   )
            A	 =      np.sum(_lowerCamelCase   ) / np.sum(_lowerCamelCase   )
            A	 =      val
    return imga







def      snake_case		(							UpperCAmelCase	:       list   ):
    A	 =      args[1] if args[1:] else """../image_data/lena.jpg"""
    A	 =      float(args[2]   ) if args[2:] else 1.0
    A	 =      float(args[3]   ) if args[3:] else 1.0
    if args[4:]:
        A	 =      int(args[4]   )
        A	 =      kernel_size + abs(kernel_size % 2 - 1   )
    else:
        A	 =      5
    return filename, spatial_variance, intensity_variance, kernel_size


if __name__ == "__main__":
     lowerCAmelCase_      ,							lowerCAmelCase_      ,							lowerCAmelCase_      ,							lowerCAmelCase_           = parse_args(sys.argv)
     lowerCAmelCase_           = cva.imread(filename, 0)
     cva.imshow('input image', img)

     lowerCAmelCase_           = img / 255
     lowerCAmelCase_           = out.astype('float32')
     lowerCAmelCase_           = bilateral_filter(out, spatial_variance, intensity_variance, kernel_size)
     lowerCAmelCase_           = out * 255
     lowerCAmelCase_           = np.uinta(out)
     cva.imshow('output image', out)
     cva.waitKey(0)
     cva.destroyAllWindows()













import copy
import re
class      UpperCamelCase :







		"""simple docstring"""



		snake_case    =   "hp"
		snake_case    =   {}
		snake_case    =   None
		@classmethod
		def       A(  cls		:       Union[str, Any]						,_SCREAMING_SNAKE_CASE		:       int						,_SCREAMING_SNAKE_CASE		:       List[Any]		)    ->   int:


						'''simple docstring'''
						A	 =      prefix
						A	 =      defaults
						cls.build_naming_info()
		@staticmethod
		def       A(  _SCREAMING_SNAKE_CASE		:       List[str]						,_SCREAMING_SNAKE_CASE		:       List[Any]		)    ->   Optional[Any]:


						'''simple docstring'''
						if len(_SCREAMING_SNAKE_CASE		) == 0:
										return ""
						A	 =      None
						if any(char.isdigit() for char in word		):
										raise Exception(f'Parameters should not contain numbers: \'{word}\' contains a number'		)
						if word in info["short_word"]:
										return info["short_word"][word]
						for prefix_len in range(1						,len(_SCREAMING_SNAKE_CASE		) + 1		):
										A	 =      word[:prefix_len]
										if prefix in info["reverse_short_word"]:
														continue
										else:
														A	 =      prefix
														break

						if short_word is None:
										# Paranoid fallback
										def int_to_alphabetic(_SCREAMING_SNAKE_CASE		:       Optional[int]		):
														A	 =      ''
														while integer != 0:
																		A	 =      chr(ord('A'		) + integer % 1_0		) + s
																		integer //= 1_0
														return s

										A	 =      0
										while True:
														A	 =      word + '#' + int_to_alphabetic(_SCREAMING_SNAKE_CASE		)
														if sword in info["reverse_short_word"]:
																		continue
														else:
																		A	 =      sword
																		break

						A	 =      short_word
						A	 =      word
						return short_word
		@staticmethod
		def       A(  _SCREAMING_SNAKE_CASE		:       Optional[int]						,_SCREAMING_SNAKE_CASE		:       Optional[int]		)    ->   int:


						'''simple docstring'''
						A	 =      param_name.split('_'		)

						A	 =      [TrialShortNamer.shortname_for_word(_SCREAMING_SNAKE_CASE						,_SCREAMING_SNAKE_CASE		) for word in words]

						# We try to create a separatorless short name, but if there is a collision we have to fallback
						# to a separated short name
						A	 =      ['', '_']

						for separator in separators:
										A	 =      separator.join(_SCREAMING_SNAKE_CASE		)
										if shortname not in info["reverse_short_param"]:
														A	 =      shortname
														A	 =      param_name
														return shortname

						return param_name
		@staticmethod
		def       A(  _SCREAMING_SNAKE_CASE		:       Optional[Any]						,_SCREAMING_SNAKE_CASE		:       Optional[int]		)    ->   List[str]:


						'''simple docstring'''
						A	 =      TrialShortNamer.shortname_for_key(_SCREAMING_SNAKE_CASE						,_SCREAMING_SNAKE_CASE		)
						A	 =      short_name
						A	 =      param_name
		@classmethod
		def       A(  cls		:       Optional[int]		)    ->   str:


						'''simple docstring'''
						if cls.NAMING_INFO is not None:
										return

						A	 =      {
						    'short_word': {},
						    'reverse_short_word': {},
						    'short_param': {},
						    'reverse_short_param': {},
						}

						A	 =      list(cls.DEFAULTS.keys()		)

						for k in field_keys:
										cls.add_new_param_name(_SCREAMING_SNAKE_CASE						,_SCREAMING_SNAKE_CASE		)

						A	 =      info
		@classmethod
		def       A(  cls		:       List[str]						,_SCREAMING_SNAKE_CASE		:       str		)    ->   List[Any]:


						'''simple docstring'''
						cls.build_naming_info()
						assert cls.PREFIX is not None
						A	 =      [copy.copy(cls.PREFIX		)]

						for k, v in params.items():
										if k not in cls.DEFAULTS:
														raise Exception(f'You should provide a default value for the param name {k} with value {v}'		)
										if v == cls.DEFAULTS[k]:
														# The default value is not added to the name
														continue

										A	 =      cls.NAMING_INFO['short_param'][k]

										if isinstance(_SCREAMING_SNAKE_CASE						,_SCREAMING_SNAKE_CASE		):
														A	 =      1 if v else 0

										A	 =      '' if isinstance(_SCREAMING_SNAKE_CASE						,(int, float)		) else '-'
										A	 =      f'{key}{sep}{v}'
										name.append(_SCREAMING_SNAKE_CASE		)

						return "_".join(_SCREAMING_SNAKE_CASE		)







		@classmethod
		def       A(  cls		:       int						,_SCREAMING_SNAKE_CASE		:       Optional[int]		)    ->   str:


						'''simple docstring'''
						A	 =      repr[len(cls.PREFIX		) + 1 :]
						if repr == "":
										A	 =      []
						else:
										A	 =      repr.split('_'		)

						A	 =      {}

						for value in values:
										if "-" in value:
														A ,		A	 =      value.split('-'		)
										else:
														A	 =      re.sub('[0-9.]'						,''						,_SCREAMING_SNAKE_CASE		)
														A	 =      float(re.sub('[^0-9.]'						,''						,_SCREAMING_SNAKE_CASE		)		)

										A	 =      cls.NAMING_INFO['reverse_short_param'][p_k]

										A	 =      p_v

						for k in cls.DEFAULTS:
										if k not in parameters:
														A	 =      cls.DEFAULTS[k]

						return parameters





