LightenDiffusion: Unsupervised Low-Light Image Enhancement with Latent-Retinex Diffusion Models
"In this paper, we propose a diffusion-based unsupervised framework that incorporates physically explainable Retinex theory with diffusion models for low-light image enhancement, named LightenDiffusion. Specifically, we present a content-transfer decomposition network that performs Retinex decomposi…