LUCID: Learning Unified Control for Image Deflaring and Exposure Mastery in Nighttime Photography
Tingyu Yang
In ACM SIGGRAPH 2026 Conference Papers, 2026
We present LUCID, a unified controllable image restoration framework for nighttime photography that jointly handles lens flare removal and exposure adjustment. By combining flare decoupling with Diffusion CFG control, LUCID achieves continuous brightness adjustment through mixed training and supports text-guided light source preservation, enabling multi-mode training and multi-effect inference within a single model. The framework also leverages multi-exposure scene reconstruction for high-quality nighttime HDR synthesis, achieving state-of-the-art IQA metrics on large-scale real-world nighttime datasets.