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arxiv: 2604.10268 · v1 · submitted 2026-04-11 · 💻 cs.CV

EditCrafter: Tuning-free High-Resolution Image Editing via Pretrained Diffusion Model

Pith reviewed 2026-05-10 16:10 UTC · model grok-4.3

classification 💻 cs.CV
keywords high-resolution image editingdiffusion modelstuning-free editingtiled inversionclassifier-free guidancepretrained modelsimage generation
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The pith

EditCrafter enables high-resolution image editing with pretrained diffusion models without any fine-tuning by using tiled inversion and a modified guidance step.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper introduces EditCrafter as a pipeline that lets users edit images at resolutions well above the sizes used to train current text-to-image diffusion models. Prior editing techniques either stay locked to low training resolutions or produce unrealistic structures and repeated patterns when applied patch by patch to larger inputs. EditCrafter first runs a tiled inversion step that keeps the original high-resolution image's identity in latent form. It then applies noise-damped manifold-constrained classifier-free guidance, called NDCFG++, to steer the generation into coherent edits from that latent. Experiments indicate this combination yields strong editing results at varied resolutions and aspect ratios with no model changes or per-image optimization required.

Core claim

EditCrafter operates by first performing tiled inversion, which preserves the original identity of the input high-resolution image. We further propose a noise-damped manifold-constrained classifier-free guidance (NDCFG++) that is tailored for high resolution image editing from the inverted latent. Our experiments show that our EditCrafter can achieve impressive editing results across various resolutions without fine-tuning and optimization.

What carries the argument

tiled inversion to preserve the high-resolution input identity, paired with noise-damped manifold-constrained classifier-free guidance (NDCFG++) to produce coherent edits from the resulting latent

If this is right

  • High-resolution images and images with non-square aspect ratios become editable using only models trained at 512x512 or 1024x1024.
  • Advanced editing tasks no longer require separate fine-tuning or optimization loops for each new image or resolution.
  • Pretrained generative models can support practical applications on large photos, detailed artwork, or wide-format content without retraining.
  • A wider range of text-guided edits become available at scales that currently exceed direct model use.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same tiling-plus-damped-guidance pattern could extend to other diffusion tasks such as high-resolution inpainting or video frame editing.
  • If NDCFG++ reliably suppresses artifacts, similar noise-damping adjustments might improve standard classifier-free guidance in lower-resolution settings as well.
  • Because no per-image optimization occurs, the approach may suit interactive or batch editing workflows where speed matters.

Load-bearing premise

Tiled inversion keeps the original identity of a high-resolution input intact in latent space, and NDCFG++ then generates edits that stay coherent without adding unrealistic structures or repetition.

What would settle it

Running the pipeline on a high-resolution test image and observing repeated object patterns, distorted shapes, or loss of original subject identity that match the failures of simple patch-wise editing.

Figures

Figures reproduced from arXiv: 2604.10268 by Hyungjin Chung, Kunho Kim, Sumin Seo, Yongjun Cho.

Figure 1
Figure 1. Figure 1: Our proposed framework, EDITCRAFTER, facilitates text-guided image editing at resolutions up to 4K while meticulously preserving the high-resolution details of the input images using only a single editing prompt. Abstract We propose EDITCRAFTER, a high-resolution image edit￾ing method that operates without tuning, leveraging pre￾trained text-to-image (T2I) diffusion models to process im￾ages at resolutions… view at source ↗
Figure 2
Figure 2. Figure 2: The overview of EDITCRAFTER pipeline. Since direct inversion of high-resolution images using the pretrained Stable Diffusion (SD) model is not feasible, we first perform tiled DDIM inversion to generate a high-resolution latent representation. Utilizing this latent, the reverse diffusion process is carried out with a re-dilated noise estimator. To enhance the quality of text-guided editing, we propose mani… view at source ↗
Figure 3
Figure 3. Figure 3: The first and third rows visualize the decoded latents over successive denoising steps. The second and fourth rows show the guidance residual—i.e., the difference between the dilated con￾ditional and unconditional predictions ϵc(zt)−ϵ∅(zt). As denois￾ing progresses, our method (NDCFG++) preserves more semanti￾cally faithful signal and suppresses background noise, compared with directly applying ScaleCrafte… view at source ↗
Figure 4
Figure 4. Figure 4: Qualitative comparisons. (1) Original image, (2) Ours, and (3) CSD in 4×, 8× and 16× settings. Best viewed on screen with zoom. The high-quality versions are provided in the supplementary material. panoramic images, yielding a total of 150 prompt-image pairs. For creating editing prompts, we applied a word￾swapping technique to the original prompts used for image generation, replacing nouns that describe t… view at source ↗
Figure 6
Figure 6. Figure 6: Ablation study qualitative results on the 16× SD 2.1 . Method ImageReward ↑ HPSv2 ↑ CLIP Score ↑ Tiled Inv. + ScaleCrafter [18] 1.2595 0.2962 34.9431 Ours w/o NDCFG++ 1.6273 0.2911 35.0254 Ours 1.6689 0.3017 35.3194 [PITH_FULL_IMAGE:figures/full_fig_p008_6.png] view at source ↗
read the original abstract

We propose EditCrafter, a high-resolution image editing method that operates without tuning, leveraging pretrained text-to-image (T2I) diffusion models to process images at resolutions significantly exceeding those used during training. Leveraging the generative priors of large-scale T2I diffusion models enables the development of a wide array of novel generation and editing applications. Although numerous image editing methods have been proposed based on diffusion models and exhibit high-quality editing results, they are difficult to apply to images with arbitrary aspect ratios or higher resolutions since they only work at the training resolutions (512x512 or 1024x1024). Naively applying patch-wise editing fails with unrealistic object structures and repetition. To address these challenges, we introduce EditCrafter, a simple yet effective editing pipeline. EditCrafter operates by first performing tiled inversion, which preserves the original identity of the input high-resolution image. We further propose a noise-damped manifold-constrained classifier-free guidance (NDCFG++) that is tailored for high resolution image editing from the inverted latent. Our experiments show that the our EditCrafter can achieve impressive editing results across various resolutions without fine-tuning and optimization.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 1 minor

Summary. The paper proposes EditCrafter, a tuning-free pipeline for high-resolution image editing with pretrained text-to-image diffusion models. It performs tiled inversion on the input to preserve identity, then applies a proposed noise-damped manifold-constrained classifier-free guidance (NDCFG++) during denoising to produce coherent edits at resolutions far above the model's training size, claiming to avoid the unrealistic structures and repetition seen in naive patch-wise methods.

Significance. If the quantitative claims hold, the work would be significant: it would demonstrate a practical way to extend pretrained diffusion models to arbitrary high resolutions and aspect ratios for editing without per-image optimization or fine-tuning, directly addressing a clear limitation of current diffusion-based editors.

major comments (2)
  1. [Abstract] Abstract: the central claim that 'our experiments show that our EditCrafter can achieve impressive editing results across various resolutions' is unsupported by any quantitative metrics, baselines, reconstruction fidelity scores (PSNR/SSIM), identity-preservation measures, or ablation results. This is load-bearing because the paper's value rests on the assertion that tiled inversion plus NDCFG++ succeed where patch-wise editing fails.
  2. [Method] The description of tiled inversion and NDCFG++ (including the damping and manifold constraint) provides no equations, pseudocode, or hyper-parameter settings, making it impossible to verify that the method is parameter-free or reproducible and to test the weakest assumption that identity is preserved at resolutions >> training size.
minor comments (1)
  1. [Abstract] Abstract contains the grammatical error 'the our EditCrafter'.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for their constructive feedback on our manuscript. We address each of the major comments below and outline the revisions we will make to strengthen the paper.

read point-by-point responses
  1. Referee: [Abstract] Abstract: the central claim that 'our experiments show that our EditCrafter can achieve impressive editing results across various resolutions' is unsupported by any quantitative metrics, baselines, reconstruction fidelity scores (PSNR/SSIM), identity-preservation measures, or ablation results. This is load-bearing because the paper's value rests on the assertion that tiled inversion plus NDCFG++ succeed where patch-wise editing fails.

    Authors: We acknowledge that the abstract's claim relies primarily on qualitative demonstrations rather than quantitative metrics. The manuscript presents visual comparisons across resolutions to illustrate that tiled inversion combined with NDCFG++ avoids the unrealistic structures and repetitions of naive patch-wise approaches. We agree that this is a load-bearing point and that quantitative support would strengthen the contribution. In the revision we will update the abstract to reflect the evaluation methodology more precisely and add quantitative results including identity-preservation scores (e.g., CLIP similarity and face-recognition metrics where applicable), reconstruction fidelity where meaningful, and ablation studies comparing against patch-wise baselines. revision: partial

  2. Referee: [Method] The description of tiled inversion and NDCFG++ (including the damping and manifold constraint) provides no equations, pseudocode, or hyper-parameter settings, making it impossible to verify that the method is parameter-free or reproducible and to test the weakest assumption that identity is preserved at resolutions >> training size.

    Authors: We appreciate the referee's emphasis on formal description and reproducibility. The original manuscript presents tiled inversion and the components of NDCFG++ (noise damping and manifold constraint) in prose to keep the exposition accessible. We agree that equations, pseudocode, and explicit hyper-parameter values are necessary. In the revised manuscript we will supply the mathematical formulation of the noise-damped manifold-constrained classifier-free guidance, the damping schedule, the manifold projection step, and algorithmic pseudocode for the full pipeline. We will also list all hyper-parameters used in the reported experiments, confirming that no per-image tuning or optimization is required beyond standard diffusion sampling settings. This will enable direct verification of identity preservation at resolutions substantially larger than the model's training size. revision: yes

Circularity Check

0 steps flagged

No significant circularity; method claims rest on empirical pipeline rather than self-referential reductions.

full rationale

The paper describes EditCrafter as a tuning-free pipeline that applies tiled inversion to preserve high-resolution identity followed by NDCFG++ guidance on pretrained diffusion latents. No equations, fitted parameters, or derivations appear in the abstract or described components that reduce by construction to their own inputs (e.g., no parameter fitted to a subset then renamed as a prediction, no self-defined uniqueness theorem, and no ansatz smuggled via self-citation). Central claims are framed as experimental outcomes on arbitrary resolutions, not as tautological consequences of the method definition itself. This matches the default expectation for non-circular papers where the derivation chain is self-contained against external pretrained models and qualitative/quantitative validation.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Abstract provides no equations, parameters, or explicit assumptions; therefore no free parameters, axioms, or invented entities can be identified.

pith-pipeline@v0.9.0 · 5514 in / 975 out tokens · 40481 ms · 2026-05-10T16:10:39.604688+00:00 · methodology

discussion (0)

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    ▷ Decode latent 13:returnx 0 B. Effect of Classfier-Guidance Scale We investigate the effect of small guidance scaleλ∈[0,1]in our sampling process. We examine the impact of varying the small guidance scale parameter,λ, within the range [0, 1] on our sampling process. As depicted in Fig. A7, the reconstruction produced withλ= 0does not exactly replicate th...