ComfyUI-Prediction-Boost
Modify noise prediction to make image brighter on Stable Diffusion. This is a custom node for ComfyUI.
Method
We use xₜ⊥Ɛ̃(the vector component of xₜ perpendicular to Ɛ̃) to boost up the image part of xₜ by this:
Ɛ̃ ← Ɛ̃ - boost_scale * (xₜ⊥Ɛ̃)
Result
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model: Animagine XL V3.1https://civitai.com/models/260267/animagine-xl-v31
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seed: 42
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steps: 20
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cfg: 5.0
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sampler: uni_pc
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scheduler: normal
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negative prompt: flat design, early sketch, PTSD, stain, signature
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prompt: original, "the aquarium girl"
prompt: original, "the aquarium girl"
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| boost=0.15 |  |
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prompt: original, "the rainy days"
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prompt: original, "botanical cafe"
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prompt: original, "across the shore"
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prompt: original, "the two of us"
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