"""simple docstring"""







import numpy as np
from cva import COLOR_BGR2GRAY, cvtColor, imread
from numpy import array, uinta
from PIL import Image

from digital_image_processing import change_contrast as cc
from digital_image_processing import convert_to_negative as cn
from digital_image_processing import sepia as sp
from digital_image_processing.dithering import burkes as bs
from digital_image_processing.edge_detection import canny
from digital_image_processing.filters import convolve as conv
from digital_image_processing.filters import gaussian_filter as gg
from digital_image_processing.filters import local_binary_pattern as lbp
from digital_image_processing.filters import median_filter as med
from digital_image_processing.filters import sobel_filter as sob
from digital_image_processing.resize import resize as rs

SCREAMING_SNAKE_CASE									=						imread(r'digital_image_processing/image_data/lena_small.jpg')
SCREAMING_SNAKE_CASE									=						cvtColor(img, COLOR_BGR2GRAY)


def      __lowerCAmelCase(		):






							"""simple docstring"""





							_lowercase :    Union[str, Any]							=							cn.convert_to_negative(__UpperCAmelCase			)
							# assert negative_img array for at least one True
							assert negative_img.any()


def      __lowerCAmelCase(		):






							"""simple docstring"""





							with Image.open('digital_image_processing/image_data/lena_small.jpg'			) as img:
														# Work around assertion for response
														assert str(cc.change_contrast(__UpperCAmelCase     ,110			)			).startswith(
														    '<PIL.Image.Image image mode=RGB size=100x100 at'			)


def      __lowerCAmelCase(		):






							"""simple docstring"""





							_lowercase :    Any							=							canny.gen_gaussian_kernel(9     ,sigma=1.4			)
							# Assert ambiguous array
							assert resp.all()


def      __lowerCAmelCase(		):






							"""simple docstring"""





							_lowercase :    Any							=							imread('digital_image_processing/image_data/lena_small.jpg'     ,0			)
							# assert ambiguous array for all == True
							assert canny_img.all()
							_lowercase :    str							=							canny.canny(__UpperCAmelCase			)
							# assert canny array for at least one True
							assert canny_array.any()


def      __lowerCAmelCase(		):






							"""simple docstring"""





							assert gg.gaussian_filter(__UpperCAmelCase     ,5     ,sigma=0.9			).all()


def      __lowerCAmelCase(		):






							"""simple docstring"""





							_lowercase :    List[str]							=							array([[0.2_5, 0.5, 0.2_5], [0.5, -3, 0.5], [0.2_5, 0.5, 0.2_5]]			)
							_lowercase :    Dict							=							conv.img_convolve(__UpperCAmelCase     ,__UpperCAmelCase			).astype(__UpperCAmelCase			)
							assert res.any()


def      __lowerCAmelCase(		):






							"""simple docstring"""





							assert med.median_filter(__UpperCAmelCase     ,3			).any()


def      __lowerCAmelCase(		):






							"""simple docstring"""





							_lowercase :    List[Any]							=							sob.sobel_filter(__UpperCAmelCase			)
							assert grad.any() and theta.any()


def      __lowerCAmelCase(		):






							"""simple docstring"""





							_lowercase :    List[Any]							=							sp.make_sepia(__UpperCAmelCase     ,20			)
							assert sepia.all()


def      __lowerCAmelCase(		__UpperCAmelCase = "digital_image_processing/image_data/lena_small.jpg"			):






							"""simple docstring"""





							_lowercase :    str							=							bs.Burkes(imread(__UpperCAmelCase     ,1			)     ,120			)
							burkes.process()
							assert burkes.output_img.any()


def      __lowerCAmelCase(		__UpperCAmelCase = "digital_image_processing/image_data/lena_small.jpg"     ,):






							"""simple docstring"""





							_lowercase :    List[str]							=							rs.NearestNeighbour(imread(__UpperCAmelCase     ,1			)     ,400     ,200			)
							nn.process()
							assert nn.output.any()







def      __lowerCAmelCase(		):






							"""simple docstring"""





							_lowercase :    Optional[int]							=							"digital_image_processing/image_data/lena.jpg"

							# Reading the image and converting it to grayscale.
							_lowercase :    Tuple							=							imread(__UpperCAmelCase     ,0			)

							# Test for get_neighbors_pixel function() return not None
							_lowercase :    Union[str, Any]							=							0
							_lowercase :    Any							=							0
							_lowercase :    Dict							=							image[x_coordinate][y_coordinate]

							_lowercase :    Optional[Any]							=							lbp.get_neighbors_pixel(
							    __UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase			)

							assert neighbors_pixels is not None

							# Test for local_binary_pattern function()
							# Create a numpy array as the same height and width of read image
							_lowercase :    List[str]							=							np.zeros((image.shape[0], image.shape[1])			)

							# Iterating through the image and calculating the local binary pattern value
							# for each pixel.
							for i in range(0     ,image.shape[0]			):
														for j in range(0     ,image.shape[1]			):
																					_lowercase :    Optional[int]							=							lbp.local_binary_value(__UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase			)

							assert lbp_image.any()




"""simple docstring"""







def      __lowerCAmelCase(		__UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase			):






	"""simple docstring"""





	return not any(
	    neighbour == 1 and colored_vertices[i] == color
	    for i, neighbour in enumerate(__UpperCAmelCase			)			)


def      __lowerCAmelCase(		__UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase			):






	"""simple docstring"""





	if index == len(__UpperCAmelCase			):
		return True

	# Recursive Step
	for i in range(__UpperCAmelCase			):
		if valid_coloring(graph[index]     ,__UpperCAmelCase     ,__UpperCAmelCase			):
			# Color current vertex
			_lowercase :    str							=							i
			# Validate coloring
			if util_color(__UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase     ,index + 1			):
				return True
			# Backtrack
			_lowercase :    List[str]							=							-1
	return False







def      __lowerCAmelCase(		__UpperCAmelCase     ,__UpperCAmelCase			):






	"""simple docstring"""





	_lowercase :    Any							=							[-1] * len(__UpperCAmelCase			)

	if util_color(__UpperCAmelCase     ,__UpperCAmelCase     ,__UpperCAmelCase     ,0			):
		return colored_vertices

	return []



