



'''simple docstring'''



from pathlib import Path

import numpy as np
from PIL import Image



def   __lowerCAmelCase					(							lowerCamelCase   :						np.ndarray					):






	'''simple docstring'''




	__lowerCAmelCase							,       __lowerCAmelCase							,       __lowerCAmelCase												=  rgb[:, :, 0], rgb[:, :, 1], rgb[:, :, 2]
	return 0.2_9_8_9 * r + 0.5_8_7_0 * g + 0.1_1_4_0 * b



def   __lowerCAmelCase					(							lowerCamelCase   :						np.ndarray					):






	'''simple docstring'''




	return (gray > 1_27) & (gray <= 2_55)



def   __lowerCAmelCase					(							lowerCamelCase   :						np.ndarray				,		lowerCamelCase   :						np.ndarray					):






	'''simple docstring'''




	__lowerCAmelCase												=  np.zeros_like(lowerCamelCase					)
	__lowerCAmelCase												=  np.zeros(
	    (image.shape[0] + kernel.shape[0] - 1, image.shape[1] + kernel.shape[1] - 1)					)

	# Copy image to padded image
	__lowerCAmelCase												=  image

	# Iterate over image & apply kernel
	for x in range(image.shape[1]					):
		for y in range(image.shape[0]					):
			__lowerCAmelCase												=  (
			    kernel * image_padded[y : y + kernel.shape[0], x : x + kernel.shape[1]]
			).sum()
			__lowerCAmelCase												=  int(summation > 0					)
	return output


if __name__ == "__main__":
	# read original image
	lowerCAmelCase	:		Union[str, Any]				=   Path(__file__).resolve().parent / '''image_data''' / '''lena.jpg'''
	lowerCAmelCase	:		Any				=   np.array(Image.open(lena_path))
	# kernel to be applied
	lowerCAmelCase	:		Union[str, Any]				=   np.array([[0, 1, 0], [1, 1, 1], [0, 1, 0]])
	lowerCAmelCase	:		Union[str, Any]				=   dilation(gray_to_binary(rgb_to_gray(lena)), structuring_element)
	# Save the output image
	lowerCAmelCase	:		Any				=   Image.fromarray(output).convert('''RGB''')
	pil_img.save('''result_dilation.png''')




'''simple docstring'''



import datetime
import platform
import subprocess
from typing import Optional, Tuple, Union

import numpy as np



def   __lowerCAmelCase					(							lowerCamelCase   :						bytes				,		lowerCamelCase   :						int					):






	'''simple docstring'''




	__lowerCAmelCase												=  f'''{sampling_rate}'''
	__lowerCAmelCase												=  "1"
	__lowerCAmelCase												=  "f32le"
	__lowerCAmelCase												=  [
	    "ffmpeg",
	    "-i",
	    "pipe:0",
	    "-ac",
	    ac,
	    "-ar",
	    ar,
	    "-f",
	    format_for_conversion,
	    "-hide_banner",
	    "-loglevel",
	    "quiet",
	    "pipe:1",
	]

	try:
		with subprocess.Popen(lowerCamelCase				,		stdin=subprocess.PIPE				,		stdout=subprocess.PIPE					) as ffmpeg_process:
			__lowerCAmelCase												=  ffmpeg_process.communicate(lowerCamelCase					)
	except FileNotFoundError as error:
		raise ValueError("ffmpeg was not found but is required to load audio files from filename"					) from error
	__lowerCAmelCase												=  output_stream[0]
	__lowerCAmelCase												=  np.frombuffer(lowerCamelCase				,		np.floataa					)
	if audio.shape[0] == 0:
		raise ValueError("Malformed soundfile"					)
	return audio



def   __lowerCAmelCase					(							lowerCamelCase   :						int				,		lowerCamelCase   :						float				,		lowerCamelCase   :						str = "f32le"				,		):






	'''simple docstring'''




	__lowerCAmelCase												=  f'''{sampling_rate}'''
	__lowerCAmelCase												=  "1"
	if format_for_conversion == "s16le":
		__lowerCAmelCase												=  2
	elif format_for_conversion == "f32le":
		__lowerCAmelCase												=  4
	else:
		raise ValueError(f'''Unhandled format `{format_for_conversion}`. Please use `s16le` or `f32le`'''					)

	__lowerCAmelCase												=  platform.system()
	if system == "Linux":
		__lowerCAmelCase												=  "alsa"
		__lowerCAmelCase												=  "default"
	elif system == "Darwin":
		__lowerCAmelCase												=  "avfoundation"
		__lowerCAmelCase												=  ":0"
	elif system == "Windows":
		__lowerCAmelCase												=  "dshow"
		__lowerCAmelCase												=  "default"

	__lowerCAmelCase												=  [
	    "ffmpeg",
	    "-f",
	    format_,
	    "-i",
	    input_,
	    "-ac",
	    ac,
	    "-ar",
	    ar,
	    "-f",
	    format_for_conversion,
	    "-fflags",
	    "nobuffer",
	    "-hide_banner",
	    "-loglevel",
	    "quiet",
	    "pipe:1",
	]
	__lowerCAmelCase												=  int(round(sampling_rate * chunk_length_s					)					) * size_of_sample
	__lowerCAmelCase												=  _ffmpeg_stream(lowerCamelCase				,		lowerCamelCase					)
	for item in iterator:
		yield item



def   __lowerCAmelCase					(							lowerCamelCase   :						int				,		lowerCamelCase   :						float				,		lowerCamelCase   :						Optional[int] = None				,		lowerCamelCase   :						Optional[Union[Tuple[float, float], float]] = None				,		lowerCamelCase   :						str = "f32le"				,		):






	'''simple docstring'''




	if stream_chunk_s is not None:
		__lowerCAmelCase												=  stream_chunk_s
	else:
		__lowerCAmelCase												=  chunk_length_s

	__lowerCAmelCase												=  ffmpeg_microphone(lowerCamelCase				,		lowerCamelCase				,		format_for_conversion=lowerCamelCase					)
	if format_for_conversion == "s16le":
		__lowerCAmelCase												=  np.intaa
		__lowerCAmelCase												=  2
	elif format_for_conversion == "f32le":
		__lowerCAmelCase												=  np.floataa
		__lowerCAmelCase												=  4
	else:
		raise ValueError(f'''Unhandled format `{format_for_conversion}`. Please use `s16le` or `f32le`'''					)

	if stride_length_s is None:
		__lowerCAmelCase												=  chunk_length_s / 6
	__lowerCAmelCase												=  int(round(sampling_rate * chunk_length_s					)					) * size_of_sample
	if isinstance(lowerCamelCase				,		(int, float)					):
		__lowerCAmelCase												=  [stride_length_s, stride_length_s]

	__lowerCAmelCase												=  int(round(sampling_rate * stride_length_s[0]					)					) * size_of_sample
	__lowerCAmelCase												=  int(round(sampling_rate * stride_length_s[1]					)					) * size_of_sample
	__lowerCAmelCase												=  datetime.datetime.now()
	__lowerCAmelCase												=  datetime.timedelta(seconds=lowerCamelCase					)
	for item in chunk_bytes_iter(lowerCamelCase				,		lowerCamelCase				,		stride=(stride_left, stride_right)				,		stream=lowerCamelCase					):
		# Put everything back in numpy scale
		__lowerCAmelCase												=  np.frombuffer(item["raw"]				,		dtype=lowerCamelCase					)
		__lowerCAmelCase												=  (
		    item["stride"][0] // size_of_sample,
		    item["stride"][1] // size_of_sample,
		)
		__lowerCAmelCase												=  sampling_rate
		audio_time += delta
		if datetime.datetime.now() > audio_time + 10 * delta:
			# We're late !! SKIP
			continue
		yield item



def   __lowerCAmelCase					(							lowerCamelCase   :						Optional[Any]				,		lowerCamelCase   :						int				,		lowerCamelCase   :						Tuple[int, int]				,		lowerCamelCase   :						bool = False					):






	'''simple docstring'''




	__lowerCAmelCase												=  B""
	__lowerCAmelCase							,       __lowerCAmelCase												=  stride
	if stride_left + stride_right >= chunk_len:
		raise ValueError(
		    f'''Stride needs to be strictly smaller than chunk_len: ({stride_left}, {stride_right}) vs {chunk_len}'''					)
	__lowerCAmelCase												=  0
	for raw in iterator:
		acc += raw
		if stream and len(lowerCamelCase					) < chunk_len:
			__lowerCAmelCase												=  (_stride_left, 0)
			yield {"raw": acc[:chunk_len], "stride": stride, "partial": True}
		else:
			while len(lowerCamelCase					) >= chunk_len:
				# We are flushing the accumulator
				__lowerCAmelCase												=  (_stride_left, stride_right)
				__lowerCAmelCase												=  {"raw": acc[:chunk_len], "stride": stride}
				if stream:
					__lowerCAmelCase												=  False
				yield item
				__lowerCAmelCase												=  stride_left
				__lowerCAmelCase												=  acc[chunk_len - stride_left - stride_right :]
    # Last chunk
	if len(lowerCamelCase					) > stride_left:
		__lowerCAmelCase												=  {"raw": acc, "stride": (_stride_left, 0)}
		if stream:
			__lowerCAmelCase												=  False
		yield item




def   __lowerCAmelCase					(							lowerCamelCase   :						Optional[int]				,		lowerCamelCase   :						int					):






	'''simple docstring'''




	__lowerCAmelCase												=  2**24  # 16Mo
	try:
		with subprocess.Popen(lowerCamelCase				,		stdout=subprocess.PIPE				,		bufsize=lowerCamelCase					) as ffmpeg_process:
			while True:
				__lowerCAmelCase												=  ffmpeg_process.stdout.read(lowerCamelCase					)
				if raw == b"":
					break
				yield raw
	except FileNotFoundError as error:
		raise ValueError("ffmpeg was not found but is required to stream audio files from filename"					) from error