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关于raw数据的噪声可能会使信号低于bl,或者高于wl #37

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openAI-1 opened this issue Apr 17, 2024 · 2 comments
Open

关于raw数据的噪声可能会使信号低于bl,或者高于wl #37

openAI-1 opened this issue Apr 17, 2024 · 2 comments

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@openAI-1
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你好,我看代码中处理前会进行归一化,im = (im - bl) / (wl - bl)。我有个问题,就是因为噪声会导致信号上下波动,raw数据我没有做clip,当信号低于bl,或者高于wl会对训练有什么影响。

@Srameo
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Srameo commented Apr 28, 2024

信号通常不会高于wl。低于bl的话通常是噪声影响(因为正常信号不会低于bl),因此保留bl一下的数据会对训练起到一定作用的帮助。

@ffmm123
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ffmm123 commented May 20, 2024

你好,我保留bl以下的数据训练后,去噪后图像的残留噪声孤立点的颜色比clip后训练的点的颜色更深,整个去噪图像看起来有很多麻点且这些点偏色,总之不进行clip的效果比clip之后的效果差。

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