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from typing import List, Union |
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def erode(labels: List[Union[str, int]], erode_label: Union[str, int], n: int = 1): |
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""" |
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遍历 labels 列表, 将连续的 erode_label 标签侵蚀 n 个. |
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""" |
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result = list() |
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in_span = False |
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count = 0 |
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for idx, label in enumerate(labels): |
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if label == erode_label: |
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if not in_span: |
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in_span = True |
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count = 0 |
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if count < n: |
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if len(result) == 0: |
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result.append(label) |
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else: |
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result.append(result[-1]) |
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count += 1 |
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continue |
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else: |
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result.append(label) |
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continue |
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elif label != erode_label: |
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if in_span: |
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in_span = False |
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for i in range(min(len(result), n)): |
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result[-i-1] = label |
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result.append(label) |
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continue |
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else: |
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result.append(label) |
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continue |
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result.append(label) |
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return result |
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def dilate(labels: List[Union[str, int]], dilate_label: Union[str, int], n: int = 1): |
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""" |
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遍历 labels 列表, 将连续的 dilate_label 标签扩张 n 个. |
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""" |
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result = list() |
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in_span = False |
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count = float('inf') |
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for idx, label in enumerate(labels): |
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if count < n: |
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result.append(dilate_label) |
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count += 1 |
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continue |
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if label == dilate_label: |
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if not in_span: |
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in_span = True |
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for i in range(min(len(result), n)): |
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result[-i-1] = label |
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result.append(label) |
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continue |
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else: |
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result.append(label) |
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continue |
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else: |
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if in_span: |
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in_span = False |
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result.append(dilate_label) |
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count = 1 |
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continue |
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else: |
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result.append(label) |
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continue |
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return result |
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def demo1(): |
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labels = [ |
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'voice', 'mute', 'mute', 'voice', 'voice', 'voice', 'voice', 'bell', 'bell', 'bell', 'mute', 'mute', 'mute', 'voice', |
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] |
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result = erode( |
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labels=labels, |
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erode_label='voice', |
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n=1, |
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) |
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print(len(labels)) |
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print(len(result)) |
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print(result) |
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return |
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def demo2(): |
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labels = [ |
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'voice', 'mute', 'mute', 'voice', 'voice', 'voice', 'voice', 'bell', 'bell', 'bell', 'mute', 'mute', 'mute', 'voice', |
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] |
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result = dilate( |
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labels=labels, |
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dilate_label='voice', |
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n=2, |
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) |
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print(len(labels)) |
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print(len(result)) |
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print(result) |
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return |
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def demo3(): |
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import time |
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labels = ['mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'voice', 'bell', 'bell', 'bell', 'bell', 'bell', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'bell', 'bell', 'bell', 'bell', 'bell', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'bell', 'bell', 'bell', 'bell', 'bell', 'bell', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute', 'mute'] |
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begin = time.time() |
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labels = erode(labels, erode_label='music', n=1) |
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labels = dilate(labels, dilate_label='music', n=1) |
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labels = dilate(labels, dilate_label='voice', n=2) |
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labels = erode(labels, erode_label='voice', n=2) |
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labels = erode(labels, erode_label='voice', n=1) |
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labels = dilate(labels, dilate_label='voice', n=3) |
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cost = time.time() - begin |
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print(cost) |
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print(labels) |
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return |
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if __name__ == '__main__': |
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demo3() |
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