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An examination on the effect of Denoise on Flux Img2Img with LoRA, a journey from Boat to Campervan


Updated:

I made an AI Tool yesterday ( FLUX IMG2IMG + LORAS + UPSCALE + CHOICE | ComfyUI Workflow | Tensor.Art ) that allows you to combine up to 3 LoRA's and upscale - it has model switching to let you choose whether to turn on 0/1/2/3 if the available LoRA inputs - you can choose the weighting 1 by 1 and swap out the base Flux model and all the LoRA's to your own preferences. I have implemented Radio Button prompting so that the main Trigger words for the LoRA's I use most often are already behind the buttons - and you can use "Custom" to add your own prompt or triggers into the mix.

For this test I used a 6k Adobe Stock licensed image of a boat on the beach, with the Model Switcher set to "2" to prevent any bleed from other LoRA's in the tool, everything is upscaled by 4x-Ultrasharp at a factor of 2 (the tool will size your longest edge to 1024 as it processes so you will end up with a 2048 pixel final image ready for facebook servers):

Original Input Image: (downsized for article)

So the first test was simply putting it through the AI Tool on base Flux model - no denoise - no LoRA at all:

Now I have added in the LoRA "TQ - Flux Frozen" by @TracQuoc at .9 Weight, and added .25 Denoise:

Next I changed the Denoise to 0.5, you can see subtle changes, a signature has appeared, the boat is starting to change in areas and writing appearing on the side of the boat:

At 0.6 Denoise the boat is starting to adapt more and the beach is changing a lot:

By 0.65 you can really see dramatic changes as the boat starts to develop wheels, its almost as if the AI has a plan for this one...

At 0.7 - the second boat has disappeared all together, the whole boat is on a trailer, the beach is changing into grassland:

Now I am stepping to 0.01 increments as all the drama happens between .7 and .8 normally with Flux

So 0.71:

0.72: (the boat is definitely changing its shape now, and you can start to see snow)

0.73 you can see its becoming a land based vehicle now:

0.74 it feels like a towing caravan/trailer:

0.75 more detail in the towing section

0.76 - everything changes and suddenly we have some kind of Safari Land Cruiser

0.77 now its a camper van with a pop up roof:

0.78 just some more camper style detailing but nothing dramatic:

0.79 There's almost no resemblance to the original scene except sky and colours:

0.8 I can't see much change here:

Now I will go up in increments of 0.05 again

0.85 the Frozen world has taken over, although it still has the style and colour feel of the original to some extent

0.9 it's all gone (it ignored inputs over .9 and changed them back to .9)

I hope you have found this a useful experiment - and will save you time and coins in playing with img2img and denoise.

You can check out all my AI Tools and LoRA's on my profile here: KurtC PhotoEd

Let me know if you enjoyed this and I might make some more (this was my first one).

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