UPT-Flow: Multi-scale transformer-guided normalizing flow for low-light image enhancement

Lintao Xu, Changhui Hu, Yin Hu, Xiaoyuan Jing, Ziyun Cai, Xiaobo Lu

Abstract: Highlights•We propose a unique RGB unbalanced point map to address information distortion.•UPT-Flow is a novel normalization flow that achieves SOTA performance in LLIE tasks.•Using multi-scale transformer feature fusion to guide flow learning.•Experiments on image enhancement, object detection, and semantic segmentation.