






import cva
import numpy as np







class  _lowercase   :
      def __init__(     self				,			a				,			a   ):

       if k in (0.04, 0.06):
        snake_case__  :    int							       =k
        snake_case__  :    str							       =window_size
       else:
        raise ValueError("""invalid k value"""   )
      def __str__(     self   ):
       return str(self.k   )



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

         snake_case__  :    Optional[Any]							       =(wxx * wyy) - (wxy**2)
         snake_case__  :    str							       =wxx + wyy
         snake_case__  :    Optional[int]							       =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_5_5   )
       return color_img, corner_list


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













class  _lowercase   :
      def __init__(     self				,			a   ):
       snake_case__  :    Optional[int]							       =size
       snake_case__  :    List[Any]							       =[0] * size
       snake_case__  :    List[Any]							       =[0] * size
      @staticmethod
      def 						lowercase__					(     a   ):
       return index | (index + 1)
      @staticmethod
      def 						lowercase__					(     a   ):
       return (index & (index + 1)) - 1
      def 						lowercase__					(     self				,			a				,			a   ):
       snake_case__  :    Optional[Any]							       =value
       while index < self.size:
        snake_case__  :    str							       =self.get_prev(a   ) + 1
        if current_left_border == index:
         snake_case__  :    Dict							       =value
        else:
         snake_case__  :    str							       =max(a				,			a				,			a   )
        snake_case__  :    Dict							       =self.get_next(a   )



      def 						lowercase__					(     self				,			a				,			a   ):
       right -= 1  # Because of right is exclusive
       snake_case__  :    Union[str, Any]							       =0
       while left <= right:
        snake_case__  :    List[str]							       =self.get_prev(a   )
        if left <= current_left:
         snake_case__  :    Optional[Any]							       =max(a				,			self.tree[right]   )
         snake_case__  :    Optional[Any]							       =current_left
        else:
         snake_case__  :    Tuple							       =max(a				,			self.arr[right]   )
         right -= 1
       return result


if __name__ == "__main__":
       import doctest

       doctest.testmod()





