ComfyOnline
ComfyUI-Prediction-Boost

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

prompt: original, "the aquarium girl" |||||| | --- | --- | --- | --- | --- | | boost=0.0 | original, "the aquarium girl" (0) | original, "the aquarium girl" (1) | original, "the aquarium girl" (2) | original, "the aquarium girl" (3) | | boost=0.15 | original, "the aquarium girl" (0) | original, "the aquarium girl" (1) | original, "the aquarium girl" (2) | original, "the aquarium girl" (3) |

prompt: original, "the rainy days" |||||| | --- | --- | --- | --- | --- | | boost=0.0 | original, "the rainy days" (0) | original, "the rainy days" (1) | original, "the rainy days" (2) | original, "the rainy days" (3) | | boost=0.15 | original, "the rainy days" (0) | original, "the rainy days" (1) | original, "the rainy days" (2) | original, "the rainy days" (3) |

prompt: original, "botanical cafe" |||||| | --- | --- | --- | --- | --- | | boost=0.0 | original, "botanical cafe" (0) | original, "botanical cafe" (1) | original, "botanical cafe" (2) | original, "botanical cafe" (3) | | boost=0.15 | original, "botanical cafe" (0) | original, "botanical cafe" (1) | original, "botanical cafe" (2) | original, "botanical cafe" (3) |

prompt: original, "across the shore" |||||| | --- | --- | --- | --- | --- | | boost=0.0 | original, "across the shore" (0) | original, "across the shore" (1) | original, "across the shore" (2) | original, "across the shore" (3) | | boost=0.15 | original, "across the shore" (0) | original, "across the shore" (1) | original, "across the shore" (2) | original, "across the shore" (3) |

prompt: original, "the two of us" |||||| | --- | --- | --- | --- | --- | | boost=0.0 | original, "the two of us" (0) | original, "the two of us" (1) | original, "the two of us" (2) | original, "the two of us" (3) | | boost=0.15 | original, "the two of us" (0) | original, "the two of us" (1) | original, "the two of us" (2) | original, "the two of us" (3) |