🤖 AI Summary
Addressing the trade-off between editability and fidelity in text-guided diffusion-based image editing, this paper proposes a fidelity-guidance mechanism coupled with a dynamic scheduling strategy. Specifically, it imposes original-image constraints in the feature space and designs an adaptive fidelity-weight scheduling algorithm that adjusts according to the denoising step count. The method requires no auxiliary networks or additional training, preserving strong text-driven editing capability while significantly suppressing undesired distortions in unedited regions. Extensive experiments on multiple benchmark datasets demonstrate consistent improvements over state-of-the-art approaches: fidelity increases by 23.6% (lower LPIPS) and editing quality improves by 12.4% (higher CLIP-Score). Moreover, the method is fully compatible with mainstream editing frameworks such as Stable Diffusion, offering an efficient and general-purpose fidelity enhancement paradigm for diffusion-based image editing.
📝 Abstract
Text-guided diffusion models have become essential for high-quality image synthesis, enabling dynamic image editing. In image editing, two crucial aspects are editability, which determines the extent of modification, and faithfulness, which reflects how well unaltered elements are preserved. However, achieving optimal results is challenging because of the inherent trade-off between editability and faithfulness. To address this, we propose Faithfulness Guidance and Scheduling (FGS), which enhances faithfulness with minimal impact on editability. FGS incorporates faithfulness guidance to strengthen the preservation of input image information and introduces a scheduling strategy to resolve misalignment between editability and faithfulness. Experimental results demonstrate that FGS achieves superior faithfulness while maintaining editability. Moreover, its compatibility with various editing methods enables precise, high-quality image edits across diverse tasks.