






import cva
import numpy as np




class 							lowerCAmelCase__  :







					def __init__(       self      :     List[str]			,		_A      :     float			,		_A      :     int):

											if k in (0.04, 0.06):
																	A__	:							Tuple						    = k
																	A__	:							Optional[Any]						    = window_size
											else:
																	raise ValueError("invalid k value")







					def __str__(       self      :     Union[str, Any]):
											return str(self.k)







					def  _lowercase			(       self      :     str			,		_A      :     str):
											A__	:							Union[str, Any]						    = cva.imread(_A			,		0)
											A__	:							Dict						    = img.shape
											A__	:							list[list[int]]						    = []
											A__	:							List[str]						    = img.copy()
											A__	:							Dict						    = cva.cvtColor(_A			,		cva.COLOR_GRAY2RGB)
											A__	:							Tuple						    = np.gradient(_A)
											A__	:							List[str]						    = dx**2
											A__	:							int						    = dy**2
											A__	:							Dict						    = dx * dy
											A__	:							Dict						    = 0.04
											A__	:							Tuple						    = self.window_size // 2
											for y in range(_A			,		h - offset):
																	for x in range(_A			,		w - offset):
																							A__	:							List[str]						    = ixx[
																							    y - offset : y + offset + 1, x - offset : x + offset + 1
																							].sum()
																							A__	:							Optional[int]						    = iyy[
																							    y - offset : y + offset + 1, x - offset : x + offset + 1
																							].sum()
																							A__	:							Dict						    = ixy[
																							    y - offset : y + offset + 1, x - offset : x + offset + 1
																							].sum()

																							A__	:							Tuple						    = (wxx * wyy) - (wxy**2)
																							A__	:							Optional[Any]						    = wxx + wyy
																							A__	:							Union[str, Any]						    = det - k * (trace**2)
																							# Can change the value
																							if r > 0.5:
																													corner_list.append([x, y, r])
																													color_img.itemset((y, x, 0)			,		0)
																													color_img.itemset((y, x, 1)			,		0)
																													color_img.itemset((y, x, 2)			,		255)
											return color_img, corner_list


if __name__ == "__main__":
		snake_case    :						Dict  =						HarrisCorner(0.04, 3)
		snake_case    :						str  =						edge_detect.detect('path_to_image')
		cva.imwrite('detect.png', color_img)




from __future__ import annotations

snake_case    :						Optional[Any]  =						{
    'A': ['B', 'C', 'E'],
    'B': ['A', 'D', 'E'],
    'C': ['A', 'F', 'G'],
    'D': ['B'],
    'E': ['A', 'B', 'D'],
    'F': ['C'],
    'G': ['C'],
}




class 							lowerCAmelCase__  :







					def __init__(       self      :     Optional[Any]			,		_A      :     dict[str, list[str]]			,		_A      :     str):
											A__	:							Optional[Any]						    = graph
											# mapping node to its parent in resulting breadth first tree
											A__	:							dict[str, str | None]						    = {}
											A__	:							List[str]						    = source_vertex







					def  _lowercase			(       self      :     List[Any]):
											A__	:							str						    = {self.source_vertex}
											A__	:							List[str]						    = None
											A__	:							List[str]						    = [self.source_vertex]  # first in first out queue

											while queue:
																	A__	:							int						    = queue.pop(0)
																	for adjacent_vertex in self.graph[vertex]:
																							if adjacent_vertex not in visited:
																													visited.add(_A)
																													A__	:							Any						    = vertex
																													queue.append(_A)







					def  _lowercase			(       self      :     int			,		_A      :     str):
											if target_vertex == self.source_vertex:
																	return self.source_vertex

											A__	:							List[Any]						    = self.parent.get(_A)
											if target_vertex_parent is None:
																	A__	:							Union[str, Any]						    = (
																	    F'No path from vertex: {self.source_vertex} to vertex: {target_vertex}'
																	)
																	raise ValueError(_A)

											return self.shortest_path(_A) + F'->{target_vertex}'


if __name__ == "__main__":
		snake_case    :						Any  =						Graph(graph, 'G')
		g.breath_first_search()
		print(g.shortest_path('D'))
		print(g.shortest_path('G'))
		print(g.shortest_path('Foo'))