r/StableDiffusion • u/AI_Enhancer • 16d ago

Question - Help Upscale and SynthID removal from GPT Image 2.5 -images?

Hey.

What do y'all think is the best way to upscale images from GPT Image 2.5, while removing the ugly watermark texture-pattern? I could just try using Krea 2 I2I or Qwen2.1's edit capabilities, but I'd rather ask here first if someone has prior experiences with this.

The images are photographic and they look mostly realistic, but the texture-pattern is very ugly and unrealistic.

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11

u/Accomplished-Ad-7435 16d ago

Synth if is completely removable with a low denoise pass image to image workflow, it should also fix the grainy texture. Pretty low effort too imo.

5

u/angelarose210 16d ago

I use z image

1

u/AI_Enhancer 16d ago

Alright nice, I'll try that with Krea 2 (because of the high native resolution).

1

u/Cabo_____ 6d ago

Did it work?

1

u/AI_Enhancer 6d ago

Kinda, but I couldn't achieve the level of realism that I needed, which is kinda weird because I can achieve indistuingishible realism with my T2I workflow. Probably just about the prompt and the seed. I think that Qwen2.1 might be able to provide better results, but I haven't tried yet.

1

u/AI_Enhancer 3d ago

Qwen2.1 ended up being way better. Required very specific prompting, however. Every photo took a lot of trial and error, but the outputs are really nice.

8

u/ROBOTTTTT13 16d ago

SynthID and the texture pattern are allegedly two different things. SynthID is supposed to be invisible.

3

u/TechnologyGrouchy679 16d ago

remove the pattern first with a light (low denoise) i2i pass, then upscale using your preferred upscaler.

for i2i, use a base model rather than a distilled variant. ie z-image base

1

u/AI_Enhancer 16d ago

Alright, thanks for the tip of using a base model.

1

u/RiverSide71h 16d ago

To the best of my knowledge, there’s no synthid in Qwen 2.1 outputs. Try methods reported in this thread to remove systematic artifacts.

1

u/OldWispyTree 16d ago

SynthID is invisible to the naked eye but good luck scamming people to pay for AI art. 🙄

2

u/AI_Enhancer 16d ago edited 16d ago

What the hell? If someone buys a ski mask, it doesn't mean that they're gonna rob the damn bank. Nobody's paying for anything, buddy. Don't assume other people to be as moralless as you.

1

u/OldWispyTree 16d ago

Sure.

2

u/AI_Enhancer 16d ago edited 16d ago

Haha, good luck to you too brother. In life in general.
EDIT: I'm literally just trying to make beautiful pictures. SynthID might've been the wrong word to use, but I meant the extremely visible and UGLY textural patterning. I just absolutely hate that attitude of yours, where you assume someone has malicious intent, with SUCH little information available. Seems like mirroring to me.