Add: ComfyUI-DCW (SNR-t bias correction)

[namemechan]

Description

Adds ComfyUI-DCW node — a wavelet-domain SNR-t bias correction plugin.

Based on: Elucidating the SNR-t Bias of Diffusion Probabilistic Models (Yu et al., arXiv:2604.16044)

• This is a near implementation adapted for ComfyUI compatibility.
• No external dependencies (pure PyTorch)
• Compatible with SDXL, SD1.5, Flux, Cosmos, EDM, DiT
• Works alongside LoRA, FreeU, IPAdapter without conflict
• Overhead: ~0.1% per step