



import cva
import numpy as np


class   __lowerCAmelCase  :
					"""simple docstring"""






					def __init__(  self       :							Union[str, Any]					,       _snake_case       :							float					,       _snake_case       :							int       ):






								"""simple docstring"""


								if k in (0.04, 0.06):
											A__	  =     k
											A__	  =     window_size
								else:
											raise ValueError('invalid k value'       )



					def __str__(  self       :							Any       ):






								"""simple docstring"""


								return str(self.k       )



					def      _a				(  self       :							Union[str, Any]					,       _snake_case       :							str       ):






								"""simple docstring"""


								A__	  =     cva.imread(_snake_case					,       0       )
								A__  ,			A__	  =     img.shape
								A__	  =     []
								A__	  =     img.copy()
								A__	  =     cva.cvtColor(_snake_case					,       cva.COLOR_GRAY2RGB       )
								A__  ,			A__	  =     np.gradient(_snake_case       )
								A__	  =     dx**2
								A__	  =     dy**2
								A__	  =     dx * dy
								A__	  =     0.04
								A__	  =     self.window_size // 2
								for y in range(_snake_case					,       h - offset       ):
											for x in range(_snake_case					,       w - offset       ):
														A__	  =     ixx[
														    y - offset : y + offset + 1, x - offset : x + offset + 1
														].sum()
														A__	  =     iyy[
														    y - offset : y + offset + 1, x - offset : x + offset + 1
														].sum()
														A__	  =     ixy[
														    y - offset : y + offset + 1, x - offset : x + offset + 1
														].sum()

														A__	  =     (wxx * wyy) - (wxy**2)
														A__	  =     wxx + wyy
														A__	  =     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)					,       2_55       )
								return color_img, corner_list


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









from __future__ import annotations

from typing import Any


def A    (							__UpperCamelCase       )    ->   int:
			if not postfix_notation:
						return 0

			A__	  =     {'+', '-', '*', '/'}
			A__	  =     []

			for token in postfix_notation:
						if token in operations:
									A__  ,			A__	  =     stack.pop(), stack.pop()
									if token == "+":
												stack.append(a + b       )
									elif token == "-":
												stack.append(a - b       )
									elif token == "*":
												stack.append(a * b       )
									else:
												if a * b < 0 and a % b != 0:
															stack.append(a // b + 1       )
												else:
															stack.append(a // b       )
						else:
									stack.append(int(__UpperCamelCase       )       )

			return stack.pop()


if __name__ == "__main__":
							import doctest

							doctest.testmod()




