



'''simple docstring'''
import numpy as np
from cva import destroyAllWindows, imread, imshow, waitKey



class _A	:





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

					'''simple docstring'''
					__UpperCAmelCase :   Any    					=  0
					# max greyscale value for #FFFFFF
					__UpperCAmelCase :   Union[str, Any]    					=  int(self.get_greyscale(255			,							255			,							255					)					)

					if not self.min_threshold < threshold < self.max_threshold:
								__UpperCAmelCase :   Dict    					=  f'Factor value should be from 0 to {self.max_threshold}'
								raise ValueError(__UpperCAmelCase					)

					__UpperCAmelCase :   Optional[int]    					=  input_img
					__UpperCAmelCase :   int    					=  threshold
					__UpperCAmelCase					,	__UpperCAmelCase :   Tuple    					=  self.input_img.shape[1], self.input_img.shape[0]

					# error table size (+4 columns and +1 row) greater than input image because of
					# lack of if statements
					__UpperCAmelCase :   int    					=  [
					    [0 for _ in range(self.height + 4					)] for __ in range(self.width + 1					)
					]
					__UpperCAmelCase :   Optional[Any]    					=  np.ones((self.width, self.height, 3)			,							np.uinta					) * 255





		@classmethod
		def 				__A							(  cls			,							__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					)							->  float:

					'''simple docstring'''
					return 0.114 * blue + 0.587 * green + 0.2126 * red





		def 				__A							(  self					)							->  None:

					'''simple docstring'''
					for y in range(self.height					):
								for x in range(self.width					):
											__UpperCAmelCase :   List[str]    					=  int(self.get_greyscale(*self.input_img[y][x]					)					)
											if self.threshold > greyscale + self.error_table[y][x]:
														__UpperCAmelCase :   Union[str, Any]    					=  (0, 0, 0)
														__UpperCAmelCase :   Optional[Any]    					=  greyscale + self.error_table[x][y]
											else:
														__UpperCAmelCase :   Optional[int]    					=  (255, 255, 255)
														__UpperCAmelCase :   List[str]    					=  greyscale + self.error_table[x][y] - 255
											self.error_table[y][x + 1] += int(8 / 32 * current_error					)
											self.error_table[y][x + 2] += int(4 / 32 * current_error					)
											self.error_table[y + 1][x] += int(8 / 32 * current_error					)
											self.error_table[y + 1][x + 1] += int(4 / 32 * current_error					)
											self.error_table[y + 1][x + 2] += int(2 / 32 * current_error					)
											self.error_table[y + 1][x - 1] += int(4 / 32 * current_error					)
											self.error_table[y + 1][x - 2] += int(2 / 32 * current_error					)


if __name__ == "__main__":
					# create Burke's instances with original images in greyscale
					_UpperCamelCase									=      [
					    Burkes(imread('''image_data/lena.jpg''', 1), threshold)
					    for threshold in (1, 126, 130, 140)
					]

					for burkes in burkes_instances:
										burkes.process()

					for burkes in burkes_instances:
										imshow(
										    F'Original image with dithering threshold: {burkes.threshold}',
										    burkes.output_img,
										)

					waitKey(0)
					destroyAllWindows()









'''simple docstring'''
from __future__ import annotations

import inspect
import unittest
from typing import List, Tuple

from transformers import ConvNextConfig
from transformers.testing_utils import require_tf, require_vision, slow
from transformers.utils import cached_property, is_tf_available, is_vision_available

from ...test_configuration_common import ConfigTester
from ...test_modeling_tf_common import TFModelTesterMixin, floats_tensor, ids_tensor
from ...test_pipeline_mixin import PipelineTesterMixin


if is_tf_available():
					import tensorflow as tf

					from transformers import TFConvNextForImageClassification, TFConvNextModel


if is_vision_available():
					from PIL import Image

					from transformers import ConvNextImageProcessor



class _A	:





		def __init__(  self			,							__UpperCAmelCase			,							__UpperCAmelCase=13			,							__UpperCAmelCase=32			,							__UpperCAmelCase=3			,							__UpperCAmelCase=4			,							__UpperCAmelCase=[10, 20, 30, 40]			,							__UpperCAmelCase=[2, 2, 3, 2]			,							__UpperCAmelCase=True			,							__UpperCAmelCase=True			,							__UpperCAmelCase=37			,							__UpperCAmelCase="gelu"			,							__UpperCAmelCase=10			,							__UpperCAmelCase=0.02			,							__UpperCAmelCase=3			,							__UpperCAmelCase=None			,							)							->  Any:

					'''simple docstring'''
					__UpperCAmelCase :   Optional[int]    					=  parent
					__UpperCAmelCase :   Optional[Any]    					=  batch_size
					__UpperCAmelCase :   List[str]    					=  image_size
					__UpperCAmelCase :   Optional[Any]    					=  num_channels
					__UpperCAmelCase :   int    					=  num_stages
					__UpperCAmelCase :   List[Any]    					=  hidden_sizes
					__UpperCAmelCase :   Optional[Any]    					=  depths
					__UpperCAmelCase :   List[str]    					=  is_training
					__UpperCAmelCase :   Tuple    					=  use_labels
					__UpperCAmelCase :   Optional[Any]    					=  intermediate_size
					__UpperCAmelCase :   Dict    					=  hidden_act
					__UpperCAmelCase :   List[str]    					=  type_sequence_label_size
					__UpperCAmelCase :   Union[str, Any]    					=  initializer_range
					__UpperCAmelCase :   Optional[Any]    					=  scope





		def 				__A							(  self					)							->  Optional[Any]:

					'''simple docstring'''
					__UpperCAmelCase :   List[Any]    					=  floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size]					)

					__UpperCAmelCase :   str    					=  None
					if self.use_labels:
								__UpperCAmelCase :   Optional[Any]    					=  ids_tensor([self.batch_size]			,							self.type_sequence_label_size					)

					__UpperCAmelCase :   Optional[int]    					=  self.get_config()

					return config, pixel_values, labels





		def 				__A							(  self					)							->  Optional[Any]:

					'''simple docstring'''
					return ConvNextConfig(
					    num_channels=self.num_channels			,							hidden_sizes=self.hidden_sizes			,							depths=self.depths			,							num_stages=self.num_stages			,							hidden_act=self.hidden_act			,							is_decoder=__UpperCAmelCase			,							initializer_range=self.initializer_range			,							)





		def 				__A							(  self			,							__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					)							->  List[Any]:

					'''simple docstring'''
					__UpperCAmelCase :   List[Any]    					=  TFConvNextModel(config=__UpperCAmelCase					)
					__UpperCAmelCase :   List[Any]    					=  model(__UpperCAmelCase			,							training=__UpperCAmelCase					)
					# expected last hidden states: B, C, H // 32, W // 32
					self.parent.assertEqual(
					    result.last_hidden_state.shape			,							(self.batch_size, self.hidden_sizes[-1], self.image_size // 32, self.image_size // 32)			,							)





		def 				__A							(  self			,							__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					)							->  Optional[int]:

					'''simple docstring'''
					__UpperCAmelCase :   Optional[int]    					=  self.type_sequence_label_size
					__UpperCAmelCase :   List[Any]    					=  TFConvNextForImageClassification(__UpperCAmelCase					)
					__UpperCAmelCase :   List[str]    					=  model(__UpperCAmelCase			,							labels=__UpperCAmelCase			,							training=__UpperCAmelCase					)
					self.parent.assertEqual(result.logits.shape			,							(self.batch_size, self.type_sequence_label_size)					)





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

					'''simple docstring'''
					__UpperCAmelCase :   List[str]    					=  self.prepare_config_and_inputs()
					__UpperCAmelCase					,	__UpperCAmelCase					,	__UpperCAmelCase :   Optional[int]    					=  config_and_inputs
					__UpperCAmelCase :   Union[str, Any]    					=  {"""pixel_values""": pixel_values}
					return config, inputs_dict



@require_tf
class _A	(     __SCREAMING_SNAKE_CASE						,					__SCREAMING_SNAKE_CASE						,					unittest.TestCase     ):
		_SCREAMING_SNAKE_CASE       :     Dict       =      (TFConvNextModel, TFConvNextForImageClassification) if is_tf_available() else ()
		_SCREAMING_SNAKE_CASE       :     Optional[Any]       =      (
		    {"feature-extraction": TFConvNextModel, "image-classification": TFConvNextForImageClassification}
		    if is_tf_available()
		    else {}
		)

		_SCREAMING_SNAKE_CASE       :     Tuple       =      False
		_SCREAMING_SNAKE_CASE       :     Tuple       =      False
		_SCREAMING_SNAKE_CASE       :     Union[str, Any]       =      False
		_SCREAMING_SNAKE_CASE       :     Optional[Any]       =      False
		_SCREAMING_SNAKE_CASE       :     str       =      False





		def 				__A							(  self					)							->  List[Any]:

					'''simple docstring'''
					__UpperCAmelCase :   Dict    					=  TFConvNextModelTester(self					)
					__UpperCAmelCase :   Optional[int]    					=  ConfigTester(
					    self			,							config_class=__UpperCAmelCase			,							has_text_modality=__UpperCAmelCase			,							hidden_size=37			,							)





		@unittest.skip(reason="""ConvNext does not use inputs_embeds"""					)
		def 				__A							(  self					)							->  str:

					'''simple docstring'''
					pass





		@unittest.skipIf(
		    not is_tf_available() or len(tf.config.list_physical_devices("""GPU"""					)					) == 0			,							reason="""TF does not support backprop for grouped convolutions on CPU."""			,							)
		@slow
		def 				__A							(  self					)							->  Optional[int]:

					'''simple docstring'''
					super().test_keras_fit()





		@unittest.skip(reason="""ConvNext does not support input and output embeddings"""					)
		def 				__A							(  self					)							->  Dict:

					'''simple docstring'''
					pass





		def 				__A							(  self					)							->  str:

					'''simple docstring'''
					__UpperCAmelCase					,	__UpperCAmelCase :   List[str]    					=  self.model_tester.prepare_config_and_inputs_for_common()

					for model_class in self.all_model_classes:
								__UpperCAmelCase :   List[Any]    					=  model_class(__UpperCAmelCase					)
								__UpperCAmelCase :   str    					=  inspect.signature(model.call					)
								# signature.parameters is an OrderedDict => so arg_names order is deterministic
								__UpperCAmelCase :   Tuple    					=  [*signature.parameters.keys()]

								__UpperCAmelCase :   Tuple    					=  ["""pixel_values"""]
								self.assertListEqual(arg_names[:1]			,							__UpperCAmelCase					)





		def 				__A							(  self					)							->  Dict:

					'''simple docstring'''
					__UpperCAmelCase :   Dict    					=  self.model_tester.prepare_config_and_inputs()
					self.model_tester.create_and_check_model(*__UpperCAmelCase					)





		@unittest.skipIf(
		    not is_tf_available() or len(tf.config.list_physical_devices("""GPU"""					)					) == 0			,							reason="""TF does not support backprop for grouped convolutions on CPU."""			,							)
		def 				__A							(  self					)							->  Union[str, Any]:

					'''simple docstring'''
					super().test_dataset_conversion()





		def 				__A							(  self					)							->  Optional[int]:

					'''simple docstring'''
					def check_hidden_states_output(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					):
								__UpperCAmelCase :   Optional[int]    					=  model_class(__UpperCAmelCase					)

								__UpperCAmelCase :   str    					=  model(**self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase					)					)
								__UpperCAmelCase :   List[str]    					=  outputs.encoder_hidden_states if config.is_encoder_decoder else outputs.hidden_states

								__UpperCAmelCase :   Optional[int]    					=  self.model_tester.num_stages
								self.assertEqual(len(__UpperCAmelCase					)			,							expected_num_stages + 1					)

								# ConvNext's feature maps are of shape (batch_size, num_channels, height, width)
								self.assertListEqual(
								    list(hidden_states[0].shape[-2:]					)			,							[self.model_tester.image_size // 4, self.model_tester.image_size // 4]			,							)

					__UpperCAmelCase					,	__UpperCAmelCase :   Union[str, Any]    					=  self.model_tester.prepare_config_and_inputs_for_common()

					for model_class in self.all_model_classes:
								__UpperCAmelCase :   List[str]    					=  True
								check_hidden_states_output(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					)

								# check that output_hidden_states also work using config
								del inputs_dict["output_hidden_states"]
								__UpperCAmelCase :   Optional[Any]    					=  True

								check_hidden_states_output(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					)





		def 				__A							(  self					)							->  Tuple:

					'''simple docstring'''
					__UpperCAmelCase					,	__UpperCAmelCase :   Any    					=  self.model_tester.prepare_config_and_inputs_for_common()

					def check_equivalence(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase={}					):
								__UpperCAmelCase :   Optional[Any]    					=  model(__UpperCAmelCase			,							return_dict=__UpperCAmelCase			,							**__UpperCAmelCase					)
								__UpperCAmelCase :   Optional[int]    					=  model(__UpperCAmelCase			,							return_dict=__UpperCAmelCase			,							**__UpperCAmelCase					).to_tuple()

								def recursive_check(__UpperCAmelCase			,							__UpperCAmelCase					):
											if isinstance(__UpperCAmelCase			,							(List, Tuple)					):
														for tuple_iterable_value, dict_iterable_value in zip(__UpperCAmelCase			,							__UpperCAmelCase					):
																	recursive_check(__UpperCAmelCase			,							__UpperCAmelCase					)
											elif tuple_object is None:
														return
											else:
														self.assertTrue(
														    all(tf.equal(__UpperCAmelCase			,							__UpperCAmelCase					)					)			,							msg=(
														        """Tuple and dict output are not equal. Difference:"""
														        f' {tf.math.reduce_max(tf.abs(tuple_object - dict_object					)					)}'
														    )			,							)

											recursive_check(__UpperCAmelCase			,							__UpperCAmelCase					)

					for model_class in self.all_model_classes:
								__UpperCAmelCase :   Dict    					=  model_class(__UpperCAmelCase					)

								__UpperCAmelCase :   Optional[int]    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase					)
								__UpperCAmelCase :   Tuple    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase					)
								check_equivalence(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					)

								__UpperCAmelCase :   Union[str, Any]    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase			,							return_labels=__UpperCAmelCase					)
								__UpperCAmelCase :   Union[str, Any]    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase			,							return_labels=__UpperCAmelCase					)
								check_equivalence(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase					)

								__UpperCAmelCase :   Optional[Any]    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase					)
								__UpperCAmelCase :   List[str]    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase					)
								check_equivalence(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase			,							{"""output_hidden_states""": True}					)

								__UpperCAmelCase :   List[Any]    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase			,							return_labels=__UpperCAmelCase					)
								__UpperCAmelCase :   Dict    					=  self._prepare_for_class(__UpperCAmelCase			,							__UpperCAmelCase			,							return_labels=__UpperCAmelCase					)
								check_equivalence(__UpperCAmelCase			,							__UpperCAmelCase			,							__UpperCAmelCase			,							{"""output_hidden_states""": True}					)





		def 				__A							(  self					)							->  Tuple:

					'''simple docstring'''
					__UpperCAmelCase :   int    					=  self.model_tester.prepare_config_and_inputs()
					self.model_tester.create_and_check_for_image_classification(*__UpperCAmelCase					)





		@slow
		def 				__A							(  self					)							->  Tuple:

					'''simple docstring'''
					__UpperCAmelCase :   Union[str, Any]    					=  TFConvNextModel.from_pretrained("""facebook/convnext-tiny-224"""					)
					self.assertIsNotNone(__UpperCAmelCase					)


def 	lowercase_						( ):

			"""simple docstring"""





			__UpperCAmelCase :   str    					=  Image.open("""./tests/fixtures/tests_samples/COCO/000000039769.png"""			)
			return image






@require_tf
@require_vision
class _A	(     unittest.TestCase     ):





		@cached_property
		def 				__A							(  self					)							->  Any:

					'''simple docstring'''
					return ConvNextImageProcessor.from_pretrained("""facebook/convnext-tiny-224"""					) if is_vision_available() else None





		@slow
		def 				__A							(  self					)							->  int:

					'''simple docstring'''
					__UpperCAmelCase :   Tuple    					=  TFConvNextForImageClassification.from_pretrained("""facebook/convnext-tiny-224"""					)

					__UpperCAmelCase :   List[Any]    					=  self.default_image_processor
					__UpperCAmelCase :   int    					=  prepare_img()
					__UpperCAmelCase :   Optional[Any]    					=  image_processor(images=__UpperCAmelCase			,							return_tensors="""tf"""					)

					# forward pass
					__UpperCAmelCase :   List[Any]    					=  model(**__UpperCAmelCase					)

					# verify the logits
					__UpperCAmelCase :   List[str]    					=  tf.TensorShape((1, 1_000)					)
					self.assertEqual(outputs.logits.shape			,							__UpperCAmelCase					)

					__UpperCAmelCase :   str    					=  tf.constant([-0.0260, -0.4739, 0.1911]					)

					tf.debugging.assert_near(outputs.logits[0, :3]			,							__UpperCAmelCase			,							atol=1E-4					)




