
'''simple docstring'''





from collections.abc import Iterator, MutableMapping
from dataclasses import dataclass
from typing import Generic, TypeVar

lowercase__	:int										=					TypeVar("KEY")
lowercase__	:Any										=					TypeVar("VAL")







@dataclass(frozen=A_ ,						slots=A_	)
class        lowercase	(      Generic[KEY, VAL]	):
							lowercase_ : KEY
							lowercase_ : VAL







class        lowercase	(      _Item	):




							def __init__(       self):
												super().__init__(A__     ,A__)





							def __bool__(       self):
												return False


lowercase__	:List[str]										=					_DeletedItem()







class        lowercase	(      MutableMapping[KEY, VAL]	):




							def __init__(       self     ,A__ = 8     ,A__ = 0.75):
												lowercase					=		initial_block_size
												lowercase					=		[None] * initial_block_size
												assert 0.0 < capacity_factor < 1.0
												lowercase					=		capacity_factor
												lowercase					=		0




							def 				A__   (       self     ,A__):
												return hash(A__) % len(self._buckets)




							def 				A__   (       self     ,A__):
												return (ind + 1) % len(self._buckets)




							def 				A__   (       self     ,A__     ,A__     ,A__):
												lowercase					=		self._buckets[ind]
												if not stored:
																	lowercase					=		_Item(A__     ,A__)
																	self._len += 1
																	return True
												elif stored.key == key:
																	lowercase					=		_Item(A__     ,A__)
																	return True
												else:
																	return False




							def 				A__   (       self):
												lowercase					=		len(self._buckets) * self._capacity_factor
												return len(self) >= int(A__)




							def 				A__   (       self):
												if len(self._buckets) <= self._initial_block_size:
																	return False
												lowercase					=		len(self._buckets) * self._capacity_factor / 2
												return len(self) < limit




							def 				A__   (       self     ,A__):
												lowercase					=		self._buckets
												lowercase					=		[None] * new_size
												lowercase					=		0
												for item in old_buckets:
																	if item:
																						self._add_item(item.key     ,item.val)




							def 				A__   (       self):
												self._resize(len(self._buckets) * 2)




							def 				A__   (       self):
												self._resize(len(self._buckets) // 2)




							def 				A__   (       self     ,A__):
												lowercase					=		self._get_bucket_index(A__)
												for _ in range(len(self._buckets)):
																	yield ind
																	lowercase					=		self._get_next_ind(A__)




							def 				A__   (       self     ,A__     ,A__):
												for ind in self._iterate_buckets(A__):
																	if self._try_set(A__     ,A__     ,A__):
																						break




							def __setitem__(       self     ,A__     ,A__):
												if self._is_full():
																	self._size_up()

												self._add_item(A__     ,A__)




							def __delitem__(       self     ,A__):
												for ind in self._iterate_buckets(A__):
																	lowercase					=		self._buckets[ind]
																	if item is None:
																						raise KeyError(A__)
																	if item is _deleted:
																						continue
																	if item.key == key:
																						lowercase					=		_deleted
																						self._len -= 1
																						break
												if self._is_sparse():
																	self._size_down()




							def __getitem__(       self     ,A__):
												for ind in self._iterate_buckets(A__):
																	lowercase					=		self._buckets[ind]
																	if item is None:
																						break
																	if item is _deleted:
																						continue
																	if item.key == key:
																						return item.val
												raise KeyError(A__)




							def __len__(       self):
												return self._len




							def __iter__(       self):
												yield from (item.key for item in self._buckets if item)





							def __repr__(       self):
												lowercase					=		""" ,""".join(
												    f'{item.key}: {item.val}' for item in self._buckets if item)
												return f'HashMap({val_string})'






from pathlib import Path

import numpy as np
from PIL import Image



def  UpperCamelCase					(							lowerCAmelCase__	):
					'''simple docstring'''
					lowercase			,		lowercase			,		lowercase					=		rgb[:, :, 0], rgb[:, :, 1], rgb[:, :, 2]
					return 0.29_89 * r + 0.58_70 * g + 0.11_40 * b



def  UpperCamelCase					(							lowerCAmelCase__	):
					'''simple docstring'''
					return (gray > 127) & (gray <= 255)



def  UpperCamelCase					(							lowerCAmelCase__				,    lowerCAmelCase__	):
					'''simple docstring'''
					lowercase					=		np.zeros_like(lowerCAmelCase__	)
					lowercase					=		np.zeros(
					    (image.shape[0] + kernel.shape[0] - 1, image.shape[1] + kernel.shape[1] - 1)	)

					# Copy image to padded image
					lowercase					=		image

					# Iterate over image & apply kernel
					for x in range(image.shape[1]	):
										for y in range(image.shape[0]	):
															lowercase					=		(
															    kernel * image_padded[y : y + kernel.shape[0], x : x + kernel.shape[1]]
															).sum()
															lowercase					=		int(summation > 0	)
					return output


if __name__ == "__main__":
							# read original image
							lowercase__	:str										=					Path(__file__).resolve().parent / "image_data" / "lena.jpg"
							lowercase__	:List[str]										=					np.array(Image.open(lena_path))
							# kernel to be applied
							lowercase__	:Union[str, Any]										=					np.array([[0, 1, 0], [1, 1, 1], [0, 1, 0]])
							lowercase__	:Optional[int]										=					dilation(gray_to_binary(rgb_to_gray(lena)), structuring_element)
							# Save the output image
							lowercase__	:str										=					Image.fromarray(output).convert("RGB")
							pil_img.save("result_dilation.png")




