





import cva
import numpy as np

class  __A:

					def __init__(      self,       A,       A      ):





												"""simple docstring"""

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

					def __str__(      self      ):





												"""simple docstring"""

												return str(self.k      )



					def 	_UpperCamelCase     (      self,       A      ):





												"""simple docstring"""

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

																										_UpperCamelCase              =						(wxx * wyy) - (wxy**2)
																										_UpperCamelCase              =						wxx + wyy
																										_UpperCamelCase              =						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__":
							lowercase    : Dict    	=  HarrisCorner(0.04, 3)
							lowercase    : str    	=  edge_detect.detect("""path_to_image""")
							cva.imwrite("""detect.png""", color_img)













from math import factorial


def     SCREAMING_SNAKE_CASE			(      lowerCAmelCase = 20					):
       _UpperCamelCase              =						2 * n  # middle entry of odd rows starting at row 3 is the solution for n = 1,
       # 2, 3,...
       _UpperCamelCase              =						n // 2

       return int(factorial(lowerCAmelCase					) / (factorial(lowerCAmelCase					) * factorial(n - k					))					)


if __name__ == "__main__":
       import sys

       if len(sys.argv) == 1:
              print(solution(20))
       else:
              try:
                     lowercase    : Dict    	=  int(sys.argv[1])
                     print(solution(n))
              except ValueError:
                     print("""Invalid entry - please enter a number.""")






