





'''simple docstring'''







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

from digital_image_processing.filters.convolve import img_convolve





def 							lowerCamelCase_   (	SCREAMING_SNAKE_CASE__   :      Tuple )			->						str:
						UpperCAmelCase_      :   Optional[int]      =	np.array([[-1, 0, 1], [-2, 0, 2], [-1, 0, 1]] )
						UpperCAmelCase_      :   Union[str, Any]      =	np.array([[1, 2, 1], [0, 0, 0], [-1, -2, -1]] )

						UpperCAmelCase_      :   Optional[int]      =	np.abs(img_convolve(UpperCAmelCase__,      UpperCAmelCase__ ) )
						UpperCAmelCase_      :   str      =	np.abs(img_convolve(UpperCAmelCase__,      UpperCAmelCase__ ) )
						# modify the pix within [0, 255]
						UpperCAmelCase_      :   Dict      =	dst_x * 255 / np.max(UpperCAmelCase__ )
						UpperCAmelCase_      :   Tuple      =	dst_y * 255 / np.max(UpperCAmelCase__ )

						UpperCAmelCase_      :   Any      =	np.sqrt((np.square(UpperCAmelCase__ )) + (np.square(UpperCAmelCase__ )) )
						UpperCAmelCase_      :   str      =	dst_xy * 255 / np.max(UpperCAmelCase__ )
						UpperCAmelCase_      :   Tuple      =	dst_xy.astype(np.uinta )

						UpperCAmelCase_      :   int      =	np.arctana(UpperCAmelCase__,      UpperCAmelCase__ )
						return dst, theta


if __name__ == "__main__":
					# read original image
					snake_case_  :							List[Any]            =	imread("../image_data/lena.jpg")
					# turn image in gray scale value
					snake_case_  :							Union[str, Any]            =	cvtColor(img, COLOR_BGR2GRAY)

					snake_case_      ,snake_case_  :							Optional[Any]            =	sobel_filter(gray)

					# show result images
					imshow("sobel filter", sobel_grad)
					imshow("sobel theta", sobel_theta)
					waitKey(0)













"""simple docstring"""



import importlib
import inspect
from functools import wraps
from typing import TYPE_CHECKING, Optional, Union

from .download.streaming_download_manager import (
    xbasename,
    xdirname,
    xet_parse,
    xexists,
    xgetsize,
    xglob,
    xgzip_open,
    xisdir,
    xisfile,
    xjoin,
    xlistdir,
    xnumpy_load,
    xopen,
    xpandas_read_csv,
    xpandas_read_excel,
    xPath,
    xrelpath,
    xsio_loadmat,
    xsplit,
    xsplitext,
    xwalk,
    xxml_dom_minidom_parse,
)
from .utils.logging import get_logger
from .utils.patching import patch_submodule
from .utils.py_utils import get_imports


A_     =				get_logger(__name__)


if TYPE_CHECKING:
						from .builder import DatasetBuilder




def   _lowerCAmelCase		(				UpperCAmelCase__							:       Optional[int],    UpperCAmelCase__							:       Optional[Union[str, bool]] = None   )		->Optional[Any]:
						A__    :	int			=	importlib.import_module(UpperCAmelCase__   )

						# TODO(QL): always update the module to add subsequent new authentication
						if hasattr(UpperCAmelCase__,    """_patched_for_streaming"""   ) and module._patched_for_streaming:
												return

						def wrap_auth(UpperCAmelCase__							:       List[str]   ):
												@wraps(UpperCAmelCase__   )
												def wrapper(*UpperCAmelCase__							:       Dict,    **UpperCAmelCase__							:       Dict   ):
																		return function(*UpperCAmelCase__,    use_auth_token=UpperCAmelCase__,    **UpperCAmelCase__   )

												A__    :	List[Any]			=	"""wrap_auth"""
												return wrapper

						# open files in a streaming fashion
						patch_submodule(UpperCAmelCase__,    """open""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """os.listdir""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """os.walk""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """glob.glob""",    wrap_auth(UpperCAmelCase__   )   ).start()
						# allow to navigate in remote zip files
						patch_submodule(UpperCAmelCase__,    """os.path.join""",    UpperCAmelCase__   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.dirname""",    UpperCAmelCase__   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.basename""",    UpperCAmelCase__   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.relpath""",    UpperCAmelCase__   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.split""",    UpperCAmelCase__   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.splitext""",    UpperCAmelCase__   ).start()
						# allow checks on paths
						patch_submodule(UpperCAmelCase__,    """os.path.exists""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.isdir""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.isfile""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """os.path.getsize""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """pathlib.Path""",    UpperCAmelCase__   ).start()
						# file readers
						patch_submodule(UpperCAmelCase__,    """gzip.open""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """numpy.load""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """pandas.read_csv""",    wrap_auth(UpperCAmelCase__   ),    attrs=["""__version__"""]   ).start()
						patch_submodule(UpperCAmelCase__,    """pandas.read_excel""",    wrap_auth(UpperCAmelCase__   ),    attrs=["""__version__"""]   ).start()
						patch_submodule(UpperCAmelCase__,    """scipy.io.loadmat""",    wrap_auth(UpperCAmelCase__   ),    attrs=["""__version__"""]   ).start()
						patch_submodule(UpperCAmelCase__,    """xml.etree.ElementTree.parse""",    wrap_auth(UpperCAmelCase__   )   ).start()
						patch_submodule(UpperCAmelCase__,    """xml.dom.minidom.parse""",    wrap_auth(UpperCAmelCase__   )   ).start()
						A__    :	Any			=	True




def   _lowerCAmelCase		(				UpperCAmelCase__							:       "DatasetBuilder"   )		->Tuple:
						extend_module_for_streaming(builder.__module__,    use_auth_token=builder.use_auth_token   )
						# if needed, we also have to extend additional internal imports (like wmt14 -> wmt_utils)
						if not builder.__module__.startswith("""datasets."""   ):  # check that it's not a packaged builder like csv
												for imports in get_imports(inspect.getfile(builder.__class__   )   ):
																		if imports[0] == "internal":
																								A__    :	Any			=	imports[1]
																								A__    :	Any			=	""".""".join(builder.__module__.split("""."""   )[:-1] + [internal_import_name]   )
																								extend_module_for_streaming(UpperCAmelCase__,    use_auth_token=builder.use_auth_token   )

    # builders can inherit from other builders that might use streaming functionality
    # (for example, ImageFolder and AudioFolder inherit from FolderBuilder which implements examples generation)
    # but these parents builders are not patched automatically as they are not instantiated, so we patch them here
						from .builder import DatasetBuilder

						A__    :	Any			=	[
						    cls.__module__
						    for cls in type(UpperCAmelCase__   ).__mro__[1:]  # make sure it's not the same module we've already patched
						    if issubclass(cls,    UpperCAmelCase__   ) and cls.__module__ != DatasetBuilder.__module__
						]  # check it's not a standard builder from datasets.builder
						for module in parent_builder_modules:
												extend_module_for_streaming(UpperCAmelCase__,    use_auth_token=builder.use_auth_token   )






