
from cva import COLOR_BGR2GRAY, cvtColor, imread, imshow, waitKey
from numpy import array, dot, pad, ravel, uinta, zeros






def 							UpperCAmelCase_		(							__SCREAMING_SNAKE_CASE			,							__SCREAMING_SNAKE_CASE							):
	lowercase  , lowercase					  =   image.shape
	lowercase					  =   cols - block_size[1] + 1
	lowercase					  =   rows - block_size[0] + 1
	lowercase					  =   zeros((dst_height * dst_width, block_size[1] * block_size[0])							)
	lowercase					  =   0
	for i in range(0			,							__SCREAMING_SNAKE_CASE							):
		for j in range(0			,							__SCREAMING_SNAKE_CASE							):
			lowercase					  =   ravel(image[i : i + block_size[0], j : j + block_size[1]]							)
			lowercase					  =   window
			row += 1

	return image_array






def 							UpperCAmelCase_		(							__SCREAMING_SNAKE_CASE			,							__SCREAMING_SNAKE_CASE							):
	lowercase  , lowercase					  =   image.shape[0], image.shape[1]
	lowercase					  =   filter_kernel.shape[0]
	lowercase					  =   k_size // 2
	# Pads image with the edge values of array.
	lowercase					  =   pad(__SCREAMING_SNAKE_CASE			,							__SCREAMING_SNAKE_CASE			,							mode='edge'							)

	# im2col, turn the k_size*k_size pixels into a row and np.vstack all rows
	lowercase					  =   imacol(__SCREAMING_SNAKE_CASE			,							(k_size, k_size)							)

	#  turn the kernel into shape(k*k, 1)
	lowercase					  =   ravel(__SCREAMING_SNAKE_CASE							)
	# reshape and get the dst image
	lowercase					  =   dot(__SCREAMING_SNAKE_CASE			,							__SCREAMING_SNAKE_CASE							).reshape(__SCREAMING_SNAKE_CASE			,							__SCREAMING_SNAKE_CASE							)
	return dst


if __name__ == "__main__":
	# read original image
	UpperCAmelCase     				=			imread(R'''../image_data/lena.jpg''')
	# turn image in gray scale value
	UpperCAmelCase     				=			cvtColor(img, COLOR_BGR2GRAY)
	# Laplace operator
	UpperCAmelCase     				=			array([[0, 1, 0], [1, -4, 1], [0, 1, 0]])
	UpperCAmelCase     				=			img_convolve(gray, Laplace_kernel).astype(uinta)
	imshow('''Laplacian''', out)
	waitKey(0)



def 							UpperCAmelCase_		(							__SCREAMING_SNAKE_CASE							):
	lowercase					  =   [701, 301, 132, 57, 23, 10, 4, 1]
	for gap in gaps:
		for i in range(__SCREAMING_SNAKE_CASE			,							len(__SCREAMING_SNAKE_CASE							)							):
			lowercase					  =   collection[i]
			lowercase					  =   i
			while j >= gap and collection[j - gap] > insert_value:
				lowercase					  =   collection[j - gap]
				j -= gap
			if j != i:
				lowercase					  =   insert_value
	return collection


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

	testmod()
	UpperCAmelCase     				=			input('''Enter numbers separated by a comma:\n''').strip()
	UpperCAmelCase     				=			[int(item) for item in user_input.split(''',''')]
	print(shell_sort(unsorted))

