video_remove_watermark_mapper¶
Remove watermarks from videos based on specified regions.
This operator removes watermarks from video frames by detecting and masking the watermark areas. It supports two detection methods: ‘pixel_value’ and ‘pixel_diversity’. The regions of interest (ROIs) for watermark detection can be specified as either pixel coordinates or ratios of the frame dimensions. The operator extracts a set number of frames uniformly from the video to detect watermark pixels. A pixel is considered part of a watermark if it meets the detection criteria in a minimum number of frames. The cleaned video is saved in the specified directory or the same directory as the input file if no save directory is provided.
根据指定区域去除视频中的水印。
该算子通过检测和遮罩水印区域来去除视频帧中的水印。它支持两种检测方法：’pixel_value’ 和 ‘pixel_diversity’。可以通过像素坐标或帧尺寸的比例来指定感兴趣区域 (ROIs) 以进行水印检测。该算子从视频中均匀提取一定数量的帧以检测水印像素。如果某个像素在最少数量的帧中满足检测标准，则认为它是水印的一部分。清理后的视频保存在指定的目录中，或者如果未提供保存目录，则保存在与输入文件相同的目录中。
Type 算子类型: mapper
Tags 标签: cpu, video
🔧 Parameter Configuration 参数配置¶
name 参数名 |
type 类型 |
default 默认值 |
desc 说明 |
|---|---|---|---|
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typing.List[str] |
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a given list of regions the watermarks locate. |
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<class ‘str’> |
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the roi string type. When the type is ‘pixel’, (x1, |
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typing.Optional[str] |
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the key name of fields in samples to store roi_strings |
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typing.Annotated[int, Gt(gt=0)] |
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the number of frames to be extracted uniformly from |
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typing.Annotated[int, Gt(gt=0)] |
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a coordination is considered as the |
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<class ‘str’> |
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the method to detect the pixels of watermark. |
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<class ‘str’> |
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The directory where generated video files will be stored. |
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extra args |
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extra args |
📊 Effect demonstration 效果演示¶
not available 暂无