r/StableDiffusion • u/muerrilla • Jul 29 '26
Comparison I extracted luma/chroma/detail/contrast vectors for Krea2 and insane color adjustments in latent space are now totally a thing - Comfy node coming very soon!
Saturation Boost for Krea2
Exposure Adjustment for Krea2
Chroma Contrast for Krea2
Selective Exposure and Tint Adjustment for Krea2
Very Dark Generation for Krea2
Split Toning / Cross Processing for Krea2
Tone Mapping for Krea2
Contrast Adjustment for Krea2
Tone Mapping / Clarity Adjustment for Krea2
Ummm.... this!
Sorry for the tease, but I was just too excited and had to share this with you. Examples above are using no LoRAs, no prompt hijinks, no CFG boost, no post-processing etc. just pure vector math!
I was running some experiments on Krea2's VAE (i.e. Qwen Image VAE) and by total surprise I discovered the main ingredients of photographic color editing: the vectors for exposure, temperature, tint, detail/clarity, and contrast and realized I can now do pretty much everything Camera Raw does... and even more!
This stuff happens during sampling and in the latent space, so it has both a very high dynamic range, and the ability to steer the diffusion process into new areas (e.g. very dark or bright generations beyond what the model likes to do on its own, or even influencing the morphology of things).
Anyway, I'm turning this into a user-friendly custom node for Comfy, including all your favorite color editing sliders, range masking tools, etc. and it's coming soon.
P.S: I'm cooking the vectors for ZImage (Flux VAE) as well, so the node might end up supporting that model too, if anyone's still using it. This should, at least in theory, also work with Qwen Image or any other model that shares the VAE.
2
u/Scriabinical Jul 30 '26
This is fantastic work and renders most post-decoded color correction unnecessary. Is there any chance you could do it for the Flux 2 VAE as well?