




'''simple docstring'''





import cva
import numpy as np

class   _a							:






     def __init__(					self   ,_SCREAMING_SNAKE_CASE   ,_SCREAMING_SNAKE_CASE       )				->     str:

          if k in (0.0_4, 0.0_6):
               _snake_case				= k
               _snake_case				= window_size
          else:
               raise ValueError("invalid k value"       )






     def __str__(					self       )				->     str:
          return str(self.k       )






     def 							_lowercase      (					self   ,_SCREAMING_SNAKE_CASE       )				->     tuple[cva.Mat, list[list[int]]]:
          _snake_case				= cva.imread(__a   ,0       )
          _snake_case				= img.shape
          _snake_case				= []
          _snake_case				= img.copy()
          _snake_case				= cva.cvtColor(__a   ,cva.COLOR_GRAY2RGB       )
          _snake_case				= np.gradient(__a       )
          _snake_case				= dx**2
          _snake_case				= dy**2
          _snake_case				= dx * dy
          _snake_case				= 0.0_4
          _snake_case				= self.window_size // 2
          for y in range(__a   ,h - offset       ):
               for x in range(__a   ,w - offset       ):
                    _snake_case				= ixx[
                        y - offset : y + offset + 1, x - offset : x + offset + 1
                    ].sum()
                    _snake_case				= iyy[
                        y - offset : y + offset + 1, x - offset : x + offset + 1
                    ].sum()
                    _snake_case				= ixy[
                        y - offset : y + offset + 1, x - offset : x + offset + 1
                    ].sum()

                    _snake_case				= (wxx * wyy) - (wxy**2)
                    _snake_case				= wxx + wyy
                    _snake_case				= 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__":
   UpperCamelCase_		:     Optional[int]          =		HarrisCorner(0.0_4, 3)
   UpperCamelCase_		:     Dict          =		edge_detect.detect('''path_to_image''')
   cva.imwrite('''detect.png''', color_img)








'''simple docstring'''







def        lowerCamelCase__				(      __lowercase				):
     if not isinstance(__lowercase     ,   __lowercase				):
          snake_case			:      int        =			F'''Input value of [number={number}] must be an integer'''
          raise TypeError(__lowercase				)
     if number < 0:
          return False
     snake_case			:      Optional[int]        =			number * number
     while number > 0:
          if number % 10 != number_square % 10:
               return False
          number //= 10
          number_square //= 10
     return True


if __name__ == "__main__":
      import doctest

      doctest.testmod()



