MambaSFLNet: A Mamba-based Model for Low-Light Image Enhancement with Spatial and Frequency Features

Mingyu Liu, Yuning Cui, Leah Strand, Xingcheng Zhou, Jiajie Zhang, Alois C. Knoll

Abstract: Low-light image enhancement (LLIE) aims to enhance the illumination of images that are captured under dark conditions, which is critical for various applications in dim environments, such as robotics and autonomous driving. Existing convolutional neural network (CNN)-based methods usually struggle to capture long-range dependencies, while transformer-based methods, despite their effectiveness, are resource-consuming. Besides, the frequency domain includes important lightness degradation information. To this end, we propose a Mamba-based framework called MambaSFLNet to effectively address LLIE by integrating spatial and frequency features. Our approach utilizes the Visual State Space Module to establish relationships across different regions of the input image while maintaining low model complexity. Furthermore, The spatial module not only balances illumination distribution but also suppresses noise and artifacts during enhancement. In addition, the frequency module enhances image contrast and sharpness by leveraging frequency-domain information. Extensive experiments on nine widely used benchmarks demonstrate that our approach achieves superior performance and exhibits strong generalization capabilities compared to existing methods. The codes are available at https://github.com/MingyuLiu1/MambaSFLNet.git

External IDs:dblp:conf/iros/LiuCSZZK25