HierEdit: Region-Aware Hierarchical Diffusion for Efficient High-Resolution Editing

• URL: http://arxiv.org/abs/2605.17294v1
• Date: Sun, 17 May 2026 07:14:15 GMT
• Title: HierEdit: Region-Aware Hierarchical Diffusion for Efficient High-Resolution Editing
• Abstract summary: High-resolution image editing is essential for professional and creative applications.<n>Current approaches redundantly process the entire image canvas or rely on large-scale high-resolution datasets.<n>We introduce HierEdit, a region-aware hierarchical diffusion framework for efficient and scalable high-resolution image editing.
• Score: 83.1290629939693
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: High-resolution image editing is essential for professional and creative applications, yet existing multimodal diffusion-based editors remain computationally inefficient and constrained to relatively low resolutions. Current approaches redundantly process the entire image canvas or rely on large-scale high-resolution datasets, resulting in substantial training and inference costs. We introduce HierEdit, a region-aware hierarchical diffusion framework designed for efficient and scalable high-resolution image editing. Our method first performs edits on a low-resolution proxy using an off-the-shelf editing model to generate a reference and to localize the modified regions. A hierarchical local-window diffusion model (\textbf{Local-Window MMDiT}) that refines only edited regions within the original high-res image, while reusing the unaltered regions as conditioning inputs. The low-resolution proxy further provides structural guidance and intermediate denoising supervision (\textbf{Inference Acceleration}) , ensuring consistent global semantics and stable generation without the need for full-resolution attention computation. This targeted and hierarchical design enables fast, high-fidelity editing of images up to 4K resolution without any specialized high-resolution training data. Extensive experiments demonstrate that HierEdit achieves competitive visual quality on commodity-resolution datasets while significantly accelerating inference and extending seamlessly to ultra-high-resolution 4K editing. Please check our {\href{https://peteryyzhang.github.io/HierEdit-page/}{\textbf{Project Page}}}.

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