FFformer: A Lightweight Feature Filter Transformer for Multi-Degraded Image Enhancement with a Novel Dataset
Yongheng Zhang
TL;DR
This paper introduces a new dataset and a lightweight model for enhancing images degraded by multiple real-world factors like weather and hardware.
Contribution
The paper introduces a novel dataset (RMTD) and a Feature Filter Transformer (FFformer) for multi-degraded image enhancement.
Findings
The RMTD dataset captures a wide range of real-world degradations for training and evaluation.
FFformer outperforms existing methods in complex-scene image enhancement.
The proposed modules (GFSA, FSFN, FEB) effectively suppress noise and restore clean features.
Abstract
Image enhancement in complex scenes is challenging due to the frequent coexistence of multiple degradations caused by adverse weather, imaging hardware, and transmission environments. Existing datasets remain limited to single or weather-specific degradation types, failing to capture real-world complexity. To address this gap, we introduce the Robust Multi-Type Degradation (RMTD) dataset, which synthesizes a wide range of degradations from meteorological, capture, and transmission sources to support model training and evaluation under realistic conditions. Furthermore, the superposition of multiple degradations often results in feature maps dominated by noise, obscuring underlying clean content. To tackle this, we propose the Feature Filter Transformer (FFformer), which includes: (1) a Gaussian-Filtered Self-Attention (GFSA) module that suppresses degradation-related activations by…
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Taxonomy
TopicsImage Enhancement Techniques · Advanced Image Processing Techniques · Generative Adversarial Networks and Image Synthesis