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帧相减镜头检测

于 2023-05-28 发布 文件大小:584.77 kB
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代码说明:

一帧本质就是一张图片,因此衡量两帧之间变化本质就是衡量两张图片的区别。在KNN算法中衡量两张图片之间相似度就是图片对应像素相减之和,将其累加,值最小的即最接近的两张图片。连续帧相减法中,我们同样使用这个指标来评价两张图片的近似度,一旦区别大到一定地步则认为该两帧是镜头边界。

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