ComfyUI-Prediction-Boost

ComfyUI-Prediction-Boost
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亮度增强噪声预测Stable DiffusionComfyUI
用于ComfyUI的自定义节点，通过调整噪声预测（Ɛ̃）利用xₜ的垂直分量放大图像成分，使生成结果更亮、细节更明显，可控地提升亮度。
💡 在ComfyUI流程中可控提升生成图像的亮度与细节
🍴 3 Forks💻 Python🔄 2024-07-31
📦
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original, "the aquarium girl" (0)
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original, "the aquarium girl" (0)
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original, "the rainy days" (0)
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original, "botanical cafe" (0)
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original, "the two of us" (0)
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📄 README

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

  • model: Animagine XL V3.1
  • seed: 42
  • steps: 20
  • cfg: 5.0
  • sampler: uni_pc
  • scheduler: normal
  • negative prompt: flat design, early sketch, PTSD, stain, signature

  • prompt: original, “the aquarium girl”

    • prompt: original, “the aquarium girl”

    ||||||

    | — | — | — | — | — |

    | boost=0.0 | [](samples/ComfyUI_00896_.png) | [](samples/ComfyUI_00897_.png) | [](samples/ComfyUI_00898_.png) | [](samples/ComfyUI_00899_.png) |

    | boost=0.15 | [](samples/ComfyUI_00920_.png) | [](samples/ComfyUI_00921_.png) | [](samples/ComfyUI_00922_.png) | [](samples/ComfyUI_00923_.png) |

    prompt: original, “the rainy days”

    ||||||

    | — | — | — | — | — |

    | boost=0.0 | [](samples/ComfyUI_00900_.png) | [](samples/ComfyUI_00901_.png) | [](samples/ComfyUI_00902_.png) | [](samples/ComfyUI_00903_.png) |

    | boost=0.15 | [](samples/ComfyUI_00924_.png) | [](samples/ComfyUI_00925_.png) | [](samples/ComfyUI_00926_.png) | [](samples/ComfyUI_00927_.png) |

    prompt: original, “botanical cafe”

    ||||||

    | — | — | — | — | — |

    | boost=0.0 | [](samples/ComfyUI_00904_.png) | [](samples/ComfyUI_00905_.png) | [](samples/ComfyUI_00906_.png) | [](samples/ComfyUI_00907_.png) |

    | boost=0.15 | [](samples/ComfyUI_00928_.png) | [](samples/ComfyUI_00929_.png) | [](samples/ComfyUI_00930_.png) | [](samples/ComfyUI_00931_.png) |

    prompt: original, “across the shore”

    ||||||

    | — | — | — | — | — |

    | boost=0.0 | [](samples/ComfyUI_00908_.png) | [](samples/ComfyUI_00909_.png) | [](samples/ComfyUI_00910_.png) | [](samples/ComfyUI_00911_.png) |

    | boost=0.15 | [](samples/ComfyUI_00932_.png) | [](samples/ComfyUI_00933_.png) | [](samples/ComfyUI_00934_.png) | [](samples/ComfyUI_00935_.png) |

    prompt: original, “the two of us”

    ||||||

    | — | — | — | — | — |

    | boost=0.0 | [](samples/ComfyUI_00912_.png) | [](samples/ComfyUI_00913_.png) | [](samples/ComfyUI_00914_.png) | [](samples/ComfyUI_00915_.png) |

    | boost=0.15 | [](samples/ComfyUI_00936_.png) | [](samples/ComfyUI_00937_.png) | [](samples/ComfyUI_00938_.png) | [](samples/ComfyUI_00939_.png) |