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H3 Inpainting + LTX Alpha Matte LoRA 实现视频背景替换
作者称使用 H3 Inpainting 结合 LTX Alpha Matte LoRA 进行视频背景替换，效果不错。其流程为：先用 LTX 2.5 LoRA 提取 matte，再用 H3 Ref inpainting（搭配 Turbo LoRA）生成新背景，并通过 Mask drop 旋钮在步骤 t 丢弃 inpainting mask，以减少闪烁并改善光照匹配。作者表示已将该工作流加入 🧨diffusers modular，并为此构建了 Spaces。
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RT Linoy Tsaban Doing video background replacement with H3 Inpainting + LTX Alpha Matte LoRA, and it's surprisingly good 🔥 > LTX 2.5 LoRA to extract matte > H3 Ref inpainting (+ Turbo LoRA) to generate a new background > Mask drop knob to reduce flickering and improve lighting match - drops the inpainting mask at step t I added the workflow to 🧨diffusers modular + built Spaces for it 👇