






"""simple docstring"""







import numpy as np
from cva import COLOR_BGR2GRAY, CV_8UC3, cvtColor, filteraD, imread, imshow, waitKey

def _a			(		_snake_case				,	_snake_case				,	_snake_case				,	_snake_case				,	_snake_case				,	_snake_case							):







      """simple docstring"""






      if (ksize % 2) == 0:
            UpperCAmelCase          =	ksize + 1
      UpperCAmelCase          =	np.zeros((ksize, ksize)				,	dtype=np.floataa							)

      # each value
      for y in range(_snake_case							):
            for x in range(_snake_case							):
                  # distance from center
                  UpperCAmelCase          =	x - ksize // 2
                  UpperCAmelCase          =	y - ksize // 2

                  # degree to radiant
                  UpperCAmelCase          =	theta / 180 * np.pi
                  UpperCAmelCase          =	np.cos(_theta							)
                  UpperCAmelCase          =	np.sin(_theta							)

                  # get kernel x
                  UpperCAmelCase          =	cos_theta * px + sin_theta * py

                  # get kernel y
                  UpperCAmelCase          =	-sin_theta * px + cos_theta * py

                  # fill kernel
                  UpperCAmelCase          =	np.exp(
                      -(_x**2 + gamma**2 * _y**2) / (2 * sigma**2)							) * np.cos(2 * np.pi * _x / lambd + psi							)

      return gabor


if __name__ == "__main__":
  import doctest

  doctest.testmod()
  # read original image
  _UpperCamelCase					      =  imread("""../image_data/lena.jpg""")
  # turn image in gray scale value
  _UpperCamelCase					      =  cvtColor(img, COLOR_BGR2GRAY)

  # Apply multiple Kernel to detect edges
  _UpperCamelCase					      =  np.zeros(gray.shape[:2])
  for theta in [0, 30, 60, 90, 120, 150]:
    _UpperCamelCase					      =  gabor_filter_kernel(10, 8, theta, 10, 0, 0)
    out += filteraD(gray, CV_8UC3, kernel_aa)
  _UpperCamelCase					      =  out / out.max() * 255
  _UpperCamelCase					      =  out.astype(np.uinta)

  imshow("""Original""", gray)
  imshow("""Gabor filter with 20x20 mask and 6 directions""", out)

  waitKey(0)











"""simple docstring"""







from __future__ import annotations

def _a			(		_snake_case				,	_snake_case = None				,	_snake_case = None							):







      """simple docstring"""






      if start is None:
            UpperCAmelCase          =	0

      if end is None:
            UpperCAmelCase          =	len(_snake_case							) - 1

      if start >= end:
            return

      UpperCAmelCase          =	(start + end) // 2

      slowsort(_snake_case				,	_snake_case				,	_snake_case							)
      slowsort(_snake_case				,	mid + 1				,	_snake_case							)

      if sequence[end] < sequence[mid]:
            UpperCAmelCase      , UpperCAmelCase          =	sequence[mid], sequence[end]

      slowsort(_snake_case				,	_snake_case				,	end - 1							)


if __name__ == "__main__":
  from doctest import testmod

  testmod()



