Jinlong Wang Xiongxin Tang Fanjiang Xu Hanxiang Yang Amplitude-Guidance Low-Light Image Enhancement with Frequency-based Channel Attention. 1-5 2025 ICASSP https://doi.org/10.1109/ICASSP49660.2025.10889027 conf/icassp/2025 db/conf/icassp/icassp2025.html#WangTXY25