


"""simple docstring"""






import numpy as np
from PIL import Image





def 				A_       ( snake_case__       ,					snake_case__       ,					snake_case__		)					->  np.ndarray:
			_UpperCamelCase					:List[str]					     =	np.array(snake_case__		)
			if arr.shape[0] != arr.shape[1]:
						raise ValueError('''The input array is not a square matrix'''		)
			_UpperCamelCase					:Any					     =	0
			_UpperCamelCase					:int					     =	0
			_UpperCamelCase					:Optional[int]					     =	0
			_UpperCamelCase					:List[str]					     =	0

			# compute the shape of the output matrix
			_UpperCamelCase					:int					     =	(arr.shape[0] - size) // stride + 1
			# initialize the output matrix with zeros of shape maxpool_shape
			_UpperCamelCase					:Any					     =	np.zeros((maxpool_shape, maxpool_shape)		)

			while i < arr.shape[0]:
						if i + size > arr.shape[0]:
									# if the end of the matrix is reached, break
									break
						while j < arr.shape[1]:
									# if the end of the matrix is reached, break
									if j + size > arr.shape[1]:
												break
									# compute the maximum of the pooling matrix
									_UpperCamelCase					:Tuple					     =	np.max(arr[i : i + size, j : j + size]		)
									# shift the pooling matrix by stride of column pixels
									j += stride
									mat_j += 1

						# shift the pooling matrix by stride of row pixels
						i += stride
						mat_i += 1

						# reset the column index to 0
						_UpperCamelCase					:int					     =	0
						_UpperCamelCase					:List[str]					     =	0

			return updated_arr





def 				A_       ( snake_case__       ,					snake_case__       ,					snake_case__		)					->  np.ndarray:
			_UpperCamelCase					:Union[str, Any]					     =	np.array(snake_case__		)
			if arr.shape[0] != arr.shape[1]:
						raise ValueError('''The input array is not a square matrix'''		)
			_UpperCamelCase					:Optional[Any]					     =	0
			_UpperCamelCase					:Dict					     =	0
			_UpperCamelCase					:Tuple					     =	0
			_UpperCamelCase					:int					     =	0

			# compute the shape of the output matrix
			_UpperCamelCase					:Tuple					     =	(arr.shape[0] - size) // stride + 1
			# initialize the output matrix with zeros of shape avgpool_shape
			_UpperCamelCase					:Any					     =	np.zeros((avgpool_shape, avgpool_shape)		)

			while i < arr.shape[0]:
						# if the end of the matrix is reached, break
						if i + size > arr.shape[0]:
									break
						while j < arr.shape[1]:
									# if the end of the matrix is reached, break
									if j + size > arr.shape[1]:
												break
									# compute the average of the pooling matrix
									_UpperCamelCase					:Optional[int]					     =	int(np.average(arr[i : i + size, j : j + size]		)		)
									# shift the pooling matrix by stride of column pixels
									j += stride
									mat_j += 1

						# shift the pooling matrix by stride of row pixels
						i += stride
						mat_i += 1
						# reset the column index to 0
						_UpperCamelCase					:Dict					     =	0
						_UpperCamelCase					:Optional[Any]					     =	0

			return updated_arr


# Main Function
if __name__ == "__main__":
					from doctest import testmod

					testmod(name="""avgpooling""", verbose=True)

					# Loading the image
					UpperCamelCase__				:Any			   =	Image.open("""path_to_image""")

					# Converting the image to numpy array and maxpooling, displaying the result
					# Ensure that the image is a square matrix

					Image.fromarray(maxpooling(np.array(image), size=3, stride=2)).show()

					# Converting the image to numpy array and averagepooling, displaying the result
					# Ensure that the image is a square matrix

					Image.fromarray(avgpooling(np.array(image), size=3, stride=2)).show()





"""simple docstring"""






import unittest

import numpy as np
import torch

from diffusers import KarrasVePipeline, KarrasVeScheduler, UNetaDModel
from diffusers.utils.testing_utils import enable_full_determinism, require_torch, slow, torch_device


enable_full_determinism()






class      A(  unittest.TestCase		):

		"""simple docstring"""





		@property
		def   _UpperCamelCase( self   )      ->	Union[str, Any]:

					"""simple docstring"""



					torch.manual_seed(0   )
					_UpperCamelCase					:str					     =	UNetaDModel(
					    block_out_channels=(32, 64)					,				layers_per_block=2					,				sample_size=32					,				in_channels=3					,				out_channels=3					,				down_block_types=('''DownBlock2D''', '''AttnDownBlock2D''')					,				up_block_types=('''AttnUpBlock2D''', '''UpBlock2D''')					,				)
					return model





		def   _UpperCamelCase( self   )      ->	str:

					"""simple docstring"""



					_UpperCamelCase					:Dict					     =	self.dummy_uncond_unet
					_UpperCamelCase					:List[Any]					     =	KarrasVeScheduler()

					_UpperCamelCase					:Optional[Any]					     =	KarrasVePipeline(unet=SCREAMING_SNAKE_CASE__					,				scheduler=SCREAMING_SNAKE_CASE__   )
					pipe.to(SCREAMING_SNAKE_CASE__   )
					pipe.set_progress_bar_config(disable=SCREAMING_SNAKE_CASE__   )

					_UpperCamelCase					:Dict					     =	torch.manual_seed(0   )
					_UpperCamelCase					:List[Any]					     =	pipe(num_inference_steps=2					,				generator=SCREAMING_SNAKE_CASE__					,				output_type='''numpy'''   ).images

					_UpperCamelCase					:List[Any]					     =	torch.manual_seed(0   )
					_UpperCamelCase					:Dict					     =	pipe(num_inference_steps=2					,				generator=SCREAMING_SNAKE_CASE__					,				output_type='''numpy'''					,				return_dict=SCREAMING_SNAKE_CASE__   )[0]

					_UpperCamelCase					:Dict					     =	image[0, -3:, -3:, -1]
					_UpperCamelCase					:List[Any]					     =	image_from_tuple[0, -3:, -3:, -1]

					assert image.shape == (1, 32, 32, 3)
					_UpperCamelCase					:List[Any]					     =	np.array([0.0, 1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0]   )

					assert np.abs(image_slice.flatten() - expected_slice   ).max() < 1E-2
					assert np.abs(image_from_tuple_slice.flatten() - expected_slice   ).max() < 1E-2






@slow
@require_torch
class      A(  unittest.TestCase		):

		"""simple docstring"""





		def   _UpperCamelCase( self   )      ->	Union[str, Any]:

					"""simple docstring"""



					_UpperCamelCase					:List[Any]					     =	'''google/ncsnpp-celebahq-256'''
					_UpperCamelCase					:Any					     =	UNetaDModel.from_pretrained(SCREAMING_SNAKE_CASE__   )
					_UpperCamelCase					:Optional[int]					     =	KarrasVeScheduler()

					_UpperCamelCase					:Optional[int]					     =	KarrasVePipeline(unet=SCREAMING_SNAKE_CASE__					,				scheduler=SCREAMING_SNAKE_CASE__   )
					pipe.to(SCREAMING_SNAKE_CASE__   )
					pipe.set_progress_bar_config(disable=SCREAMING_SNAKE_CASE__   )

					_UpperCamelCase					:List[str]					     =	torch.manual_seed(0   )
					_UpperCamelCase					:List[Any]					     =	pipe(num_inference_steps=20					,				generator=SCREAMING_SNAKE_CASE__					,				output_type='''numpy'''   ).images

					_UpperCamelCase					:Dict					     =	image[0, -3:, -3:, -1]
					assert image.shape == (1, 2_56, 2_56, 3)
					_UpperCamelCase					:Any					     =	np.array([0.5_7_8, 0.5_8_1_1, 0.5_9_2_4, 0.5_8_0_9, 0.5_8_7, 0.5_8_8_6, 0.5_8_6_1, 0.5_8_0_2, 0.5_8_6]   )

					assert np.abs(image_slice.flatten() - expected_slice   ).max() < 1E-2

