

import math
import sys

import cva
import numpy as np






def        snake_case__		(    lowerCamelCase_     ,				lowerCamelCase_		):
							# For applying gaussian function for each element in matrix.
							A      :					Optional[Any]      		=					math.sqrt(__UpperCamelCase		)
							A      :					str      		=					1 / (sigma * math.sqrt(2 * math.pi		))
							return cons * np.exp(-((img / sigma) ** 2) * 0.5		)






def        snake_case__		(    lowerCamelCase_     ,				lowerCamelCase_     ,				lowerCamelCase_     ,				lowerCamelCase_		):
							A      :					List[str]      		=					kernel_size // 2
							return img[x - half : x + half + 1, y - half : y + half + 1]






def        snake_case__		(    lowerCamelCase_     ,				lowerCamelCase_		):
							# Creates a gaussian kernel of given dimension.
							A      :					List[str]      		=					np.zeros((kernel_size, kernel_size)		)
							for i in range(0     ,				__UpperCamelCase		):
														for j in range(0     ,				__UpperCamelCase		):
																					A      :					Optional[Any]      		=					math.sqrt(
																					    abs(i - kernel_size // 2		) ** 2 + abs(j - kernel_size // 2		) ** 2		)
							return vec_gaussian(__UpperCamelCase     ,				__UpperCamelCase		)






def        snake_case__		(    lowerCamelCase_     ,				lowerCamelCase_     ,				lowerCamelCase_     ,				lowerCamelCase_     ,				):
							A      :					Optional[int]      		=					np.zeros(img.shape		)
							A      :					int      		=					get_gauss_kernel(__UpperCamelCase     ,				__UpperCamelCase		)
							A      :					List[Any]      		=					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      :					str      		=					get_slice(__UpperCamelCase     ,				__UpperCamelCase     ,				__UpperCamelCase     ,				__UpperCamelCase		)
																					A      :					List[Any]      		=					img_s - img_s[kernel_size // 2, kernel_size // 2]
																					A      :					Optional[Any]      		=					vec_gaussian(__UpperCamelCase     ,				__UpperCamelCase		)
																					A      :					List[Any]      		=					np.multiply(__UpperCamelCase     ,				__UpperCamelCase		)
																					A      :					Dict      		=					np.multiply(__UpperCamelCase     ,				__UpperCamelCase		)
																					A      :					List[Any]      		=					np.sum(__UpperCamelCase		) / np.sum(__UpperCamelCase		)
																					A      :					Dict      		=					val
							return imga






def        snake_case__		(    lowerCamelCase_		):
							A      :					Any      		=					args[1] if args[1:] else "../image_data/lena.jpg"
							A      :					Union[str, Any]      		=					float(args[2]		) if args[2:] else 1.0
							A      :					Any      		=					float(args[3]		) if args[3:] else 1.0
							if args[4:]:
														A      :					str      		=					int(args[4]		)
														A      :					List[Any]      		=					kernel_size + abs(kernel_size % 2 - 1		)
							else:
														A      :					Optional[Any]      		=					5
							return filename, spatial_variance, intensity_variance, kernel_size


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

		lowercase			:				Tuple   =     img / 2_55
		lowercase			:				Tuple   =     out.astype("float32")
		lowercase			:				Optional[int]   =     bilateral_filter(out, spatial_variance, intensity_variance, kernel_size)
		lowercase			:				Dict   =     out * 2_55
		lowercase			:				Tuple   =     np.uinta(out)
		cva.imshow("output image", out)
		cva.waitKey(0)
		cva.destroyAllWindows()











import unittest

from knapsack import knapsack as k


class 				_a						(       unittest.TestCase			):





							'''simple docstring'''

							def 		_A	(							self				):







											"""simple docstring"""



											a__	:							List[str]      						= 0
											a__	:							Union[str, Any]      						= [0]
											a__	:							Optional[Any]      						= [0]
											a__	:							Tuple      						= len(__UpperCAmelCase				)
											self.assertEqual(k.knapsack(__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase				) ,					0				)

											a__	:							Optional[Any]      						= [60]
											a__	:							Tuple      						= [10]
											a__	:							Optional[Any]      						= len(__UpperCAmelCase				)
											self.assertEqual(k.knapsack(__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase				) ,					0				)



							def 		_A	(							self				):







											"""simple docstring"""



											a__	:							Dict      						= 3
											a__	:							Optional[int]      						= [1, 2, 3]
											a__	:							List[Any]      						= [3, 2, 1]
											a__	:							List[Any]      						= len(__UpperCAmelCase				)
											self.assertEqual(k.knapsack(__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase				) ,					5				)




							def 		_A	(							self				):







											"""simple docstring"""



											a__	:							List[Any]      						= 50
											a__	:							Union[str, Any]      						= [60, 100, 120]
											a__	:							str      						= [10, 20, 30]
											a__	:							Union[str, Any]      						= len(__UpperCAmelCase				)
											self.assertEqual(k.knapsack(__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase ,					__UpperCAmelCase				) ,					220				)


if __name__ == "__main__":
						unittest.main()


