arxivcs.CV2026-07-15
The Devil is in the Dark Pixels: Toward Brightness Bias-Robust Denoising
Sungjun Cho, Zhuangzhuang Chen, Xiaomeng Li
In this paper, we reveal an important yet overlooked problem in image denoising: under signal-dependent camera noise models, dark regions suffer from inherently low Signal-to-Noise Ratio (SNR), as signal intensity decays far faster than noise variance diminishes, making detail re…