Comments (3)
fenghansen
commented on August 30, 2024
训练和推理的时候是否进行clip要统一，统一clip和统一不clip都是可行的，不统一的话总会出现严重的artifacts
在我的实验中，统一不clip更好一些（最大值最好还是clip一下）
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ffmm123
commented on August 30, 2024
谢谢解答，因为在我的实验中，光照在千分之一左右，理论上不做clip效果较好，但实际上大多值不做clip后为负值，模型很难将这些负值向gt靠近，所以，测试图像出现很多的孤立点各通道颜色严重不平衡导致偏色。
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fenghansen
commented on August 30, 2024
残留噪声很大的情况下显得偏色一般是白平衡增益不均衡（一般r:g:b约2:1:2）导致的偏紫？其他的偏色一般都是black level歪了的问题，你clip掉了的话就更不知道均值是多少了。建议查一下无光暗帧的darkshading，看看均值是不是明显偏离black level。
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