Problems with duplication

To be honest, I’ve hardly ever used this kind of model, so I can’t really picture it…

For now, I’ve modified the GUI settings to make them a bit more flexible. However, when it comes to improving the model’s logic, there’s probably a limit to what I can do…

Edit: Oh. I asked an AI, and apparently it has some ideas about the settings:

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Practical answer: there are two different “large logo” cases

For a huge logo, the most important point is that inpainting is not really “recovering the hidden original pixels.” It is generating a plausible replacement for the masked region.

That distinction matters a lot here.

DiffuEraser is a diffusion-based video inpainting model. Its paper says it uses prior information for initialization and weak conditioning to reduce noisy artifacts and suppress hallucinations, but that still does not mean it can know exactly what was behind a fully covered logo: DiffuEraser paper, DiffuEraser project/code. The prior stage is related to ProPainter-style video inpainting, which uses propagation and transformer mechanisms to fill masked regions from neighboring frames: ProPainter paper, ProPainter project.

So I would think about your case as one of these two tasks:

Goal	Best mode	What it tries to do	Main risk
Remove the big logo as completely as possible	Remove object / person	Treat the logo area as something to replace	It may distort text/logos/faces underneath
Reduce the logo while preserving jersey text, faces, logos, or other details underneath	Watermark over faces / text	Blend some original/ProPainter detail back into the result	Some of the watermark may remain

If the huge logo is over plain background, use the first approach. If the huge logo is over jersey text, a team logo, a face, a number, or another detail you want to keep, use the second approach.

My suggested first try for your case

Because you mentioned that the model does not “imagine” the hidden area correctly and the result becomes distorted, I would first try the detail-preserving route.

Use:

Task mode: Watermark over faces / text

PCM checkpoint: 8-Step
Scheduler: Auto
Maximum image size: 1152
Frame rate limit: Original
Output frame rate: Same as processed video

Mask refine mode: Keep
Mask refine iterations: 0
Mask dilation iterations: 3
Mask feather: 6

Detail preservation mode: Preserve original details
Detail correction strength: 0.60

Prompt: empty
Negative prompt: distorted text, distorted logo, warped face, blurry face

Why this configuration:

Setting	Why
Watermark over faces / text	This is for watermarks over details you want to keep, such as faces, jersey text, logos, numbers, or patterns.
8-Step	Slower than 4-Step, but usually a better starting point when you care about details.
Maximum image size: 1152	Gives the model more detail to work with.
Mask dilation: 3	Covers the logo edge a little, but does not expand the mask too aggressively.
Mask feather: 6	Softens the transition around the edited region.
Detail preservation: Preserve original details	Blends some of the original video back into the masked region, so the result is less likely to completely regenerate jersey text or face details.
Detail correction strength: 0.60	A middle value: strong enough to reduce the watermark, but not so strong that it replaces everything underneath.

The important trade-off is this:

Higher Detail correction strength
→ removes more watermark
→ but may distort jersey text, logos, faces, or numbers

Lower Detail correction strength
→ preserves more original detail
→ but may leave more of the watermark visible

How I would tune it after the first result

Start with Detail correction strength: 0.60, then adjust from the result.

Result problem	Change
The watermark is still too visible	Increase Detail correction strength to 0.70 or 0.80
Jersey text / logo / face is distorted	Lower Detail correction strength to 0.45 or 0.50
The edge of the huge logo remains	Increase Mask dilation iterations from 3 to 5 or 6
Too much of the surrounding jersey or face changes	Lower Mask dilation iterations to 1 or 2
The raw DiffuEraser result looks good but slightly unstable	Keep Preserve original details
The raw DiffuEraser result is too hallucinated, but the ProPainter prior looks more stable	Try Detail preservation mode: Use ProPainter-prior blend
The watermark is over plain background, not important details	Switch to Remove object / person

If you want maximum removal instead

If your priority is “remove the big logo as much as possible,” and you do not care much about preserving whatever is underneath it, then use a more normal object-removal setup:

Task mode: Remove object / person

PCM checkpoint: 4-Step or 8-Step
Scheduler: Auto
Maximum image size: 960 or 1152
Frame rate limit: Original

Mask refine mode: Keep
Mask refine iterations: 0
Mask dilation iterations: 8
Mask feather: 0 or 2

Detail preservation mode: Off

If the logo outline remains:

Mask dilation iterations: 10 or 12

This is more aggressive. It can remove the big logo more completely, but it is also more likely to regenerate or distort anything inside the mask.

Why the jersey logos/text can get distorted

If the watermark covers a jersey logo, team crest, number, face, or text, then the mask tells the model:

This region should be edited/replaced.

So the model does not know which pixels inside the mask are “bad watermark pixels” and which pixels are “good jersey/logo/face pixels.” If the jersey logo is inside the masked region, it may be treated as something to replace too.

That is why the new detail-preservation mode exists. It is not magic reconstruction, but it gives you a better trade-off:

less full removal
more original detail preservation

For large logos over important details, that is often better than asking the model to completely regenerate the whole masked region.

Debug outputs to check

The current improved UI has several debug outputs. They are useful for deciding what to change next.

Debug output	What to check
Refined mask preview	White/bright areas are edited. If important details are white, they may be regenerated or distorted.
ProPainter priori video	If this already looks badly distorted, the problem is probably the mask or the prior stage.
Raw DiffuEraser result	Shows the result before detail-preservation blending.
Final result	Shows the result after the selected detail-preservation mode.
Run settings file	Useful for sharing exact settings so the result can be reproduced or tuned.

A practical check:

Observation	What I would try
Raw DiffuEraser result is clean, but final result leaves watermark	Increase Detail correction strength
Raw DiffuEraser result distorts faces/text/logos	Lower Detail correction strength or try Use ProPainter-prior blend
ProPainter priori video is better than raw DiffuEraser	Try Detail preservation mode: Use ProPainter-prior blend
Both ProPainter and raw DiffuEraser are bad	The mask is probably too large, too small, or covering too much important detail
Refined mask covers the jersey logo you want to keep	Lower Mask dilation, increase Detail preservation, or use a smaller mask

Suggested test sequence

I would test in this order:

Test	Settings	Purpose
1	Watermark over faces / text, strength 0.60, dilation 3, feather 6	Balanced first try
2	Same, strength 0.45	More detail preservation
3	Same, strength 0.75	More watermark removal
4	Same, Use ProPainter-prior blend	If DiffuEraser hallucination is the main problem
5	Remove object / person, dilation 8–12, detail preservation Off	Maximum removal, less concern for underlying details

This is the main idea:

If you want the logo gone:
  use stronger object-removal settings.

If you want the hidden jersey/face/text to stay recognizable:
  use detail preservation and accept that a little watermark may remain.

One more practical suggestion

If possible, use the smallest accurate mask that covers the unwanted logo. For large overlaid logos, the mask quality matters a lot.

A too-small mask leaves logo edges. A too-large mask makes the model regenerate useful details underneath.

That is also why Mask dilation is important:

Dilation	Typical effect
1–3	Better for preserving details under a watermark
4–6	Middle ground
8–12	Better for full object/logo replacement, but more likely to distort covered details

Bottom line

For your specific question, I would not start with the most aggressive object-removal settings. I would start with:

Task mode: Watermark over faces / text
Detail preservation mode: Preserve original details
Detail correction strength: 0.60
Mask dilation: 3
Mask feather: 6
PCM checkpoint: 8-Step
Maximum image size: 1152

Then:

If the watermark remains:
  raise Detail correction strength.

If the jersey logo, face, or text is distorted:
  lower Detail correction strength.

If the logo border remains:
  raise Mask dilation.

If the whole masked area looks hallucinated:
  try Use ProPainter-prior blend.

If you can share the Run settings file from the debug output after a test run, it should be easier to suggest a more precise next setting.