Video background replacement with H3 Inpainting + LTX Alpha Matte LoRA, plus a diffusers workflow
linoy_tsaban · x · 2026-10-07
Linoy Tsaban shared a surprisingly effective video background replacement workflow: an LTX 2.5 Alpha Matte LoRA extracts the matte, H3 Ref inpainting with a Turbo LoRA generates the new background, and a mask drop knob (dropping the inpainting mask at step t) reduces flicker and improves lighting match. The workflow is added to diffusers modular, with Hugging Face Spaces (including a Gradio version) available to try.
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