DHM · guidefuse · 2026-08-06

LoRA output as HDR-merge guide — v0 vs v2

The golden-process pattern applied to the LoRA look: the approved v1+lift s1.6 output is used only as the guide for per-pixel guide-weighted bracket fusion (fuse_guided.py) over the scene's 6 RAW brackets — every output pixel is developed sensor data; the LoRA image only votes on tone. First 5 holdout scenes, 11 Scotch Pine Cir. v0 selects among brackets by luminance closeness + global poly grade; v2 (XP-acd6bffb) selects among brackets × recipes {default, strong-WB, +1EV} by ΔE in Lab, so the guide can vote for neutral walls and dark windows directly. Metrics vs the editor beat. Back to the LoRA lab · picks.

Metrics

sceneimagestruct % ↓ wall ΔLchromaclip %
007LoRA guide (v1+lift s1.6)15.7-0.62.20.03
007guidefuse v0 (luminance select)4.7-0.53.50.09
007guidefuse v2 (candidate menu)8.1+0.02.00.02
007spatialgrade (fuse + spatial grade)13.7-0.12.70.00
008LoRA guide (v1+lift s1.6)9.6-0.82.90.04
008guidefuse v0 (luminance select)1.4-0.55.10.06
008guidefuse v2 (candidate menu)3.9+0.03.10.02
008spatialgrade (fuse + spatial grade)8.3-0.13.10.00
009LoRA guide (v1+lift s1.6)24.5-1.03.20.00
009guidefuse v0 (luminance select)8.5+1.79.60.09
009guidefuse v2 (candidate menu)22.5+0.03.90.19
009spatialgrade (fuse + spatial grade)18.5+1.05.70.03
010LoRA guide (v1+lift s1.6)15.3-1.73.50.03
010guidefuse v0 (luminance select)5.3-0.16.70.51
010guidefuse v2 (candidate menu)8.4+0.03.80.13
010spatialgrade (fuse + spatial grade)14.3-0.54.30.00
011LoRA guide (v1+lift s1.6)14.0-1.16.90.23
011guidefuse v0 (luminance select)16.1-1.68.50.27
011guidefuse v2 (candidate menu)17.0+0.07.10.19
011spatialgrade (fuse + spatial grade)19.6-0.17.10.03

scene 007

seed render (input)LoRA guide (v1+lift s1.6)struct 15.7 · ΔL -0.6 · chroma 2.2 · clip 0.03 · vs guide ΔL +0.0guidefuse v0 (luminance select)struct 4.7 · ΔL -0.5 · chroma 3.5 · clip 0.09 · vs guide ΔL +0.3guidefuse v2 (candidate menu)struct 8.1 · ΔL +0.0 · chroma 2.0 · clip 0.02 · vs guide ΔL +0.8spatialgrade (fuse + spatial grade)struct 13.7 · ΔL -0.1 · chroma 2.7 · clip 0.00 · vs guide ΔL +0.3beat (editor)

scene 008

seed render (input)LoRA guide (v1+lift s1.6)struct 9.6 · ΔL -0.8 · chroma 2.9 · clip 0.04 · vs guide ΔL +0.0guidefuse v0 (luminance select)struct 1.4 · ΔL -0.5 · chroma 5.1 · clip 0.06 · vs guide ΔL +0.8guidefuse v2 (candidate menu)struct 3.9 · ΔL +0.0 · chroma 3.1 · clip 0.02 · vs guide ΔL +0.9spatialgrade (fuse + spatial grade)struct 8.3 · ΔL -0.1 · chroma 3.1 · clip 0.00 · vs guide ΔL +0.4beat (editor)

scene 009

seed render (input)LoRA guide (v1+lift s1.6)struct 24.5 · ΔL -1.0 · chroma 3.2 · clip 0.00 · vs guide ΔL +0.0guidefuse v0 (luminance select)struct 8.5 · ΔL +1.7 · chroma 9.6 · clip 0.09 · vs guide ΔL +3.1guidefuse v2 (candidate menu)struct 22.5 · ΔL +0.0 · chroma 3.9 · clip 0.19 · vs guide ΔL +1.1spatialgrade (fuse + spatial grade)struct 18.5 · ΔL +1.0 · chroma 5.7 · clip 0.03 · vs guide ΔL +1.4beat (editor)

scene 010

seed render (input)LoRA guide (v1+lift s1.6)struct 15.3 · ΔL -1.7 · chroma 3.5 · clip 0.03 · vs guide ΔL +0.0guidefuse v0 (luminance select)struct 5.3 · ΔL -0.1 · chroma 6.7 · clip 0.51 · vs guide ΔL +1.7guidefuse v2 (candidate menu)struct 8.4 · ΔL +0.0 · chroma 3.8 · clip 0.13 · vs guide ΔL +1.5spatialgrade (fuse + spatial grade)struct 14.3 · ΔL -0.5 · chroma 4.3 · clip 0.00 · vs guide ΔL +0.4beat (editor)

scene 011

seed render (input)LoRA guide (v1+lift s1.6)struct 14.0 · ΔL -1.1 · chroma 6.9 · clip 0.23 · vs guide ΔL +0.0guidefuse v0 (luminance select)struct 16.1 · ΔL -1.6 · chroma 8.5 · clip 0.27 · vs guide ΔL +0.2guidefuse v2 (candidate menu)struct 17.0 · ΔL +0.0 · chroma 7.1 · clip 0.19 · vs guide ΔL +1.3spatialgrade (fuse + spatial grade)struct 19.6 · ΔL -0.1 · chroma 7.1 · clip 0.03 · vs guide ΔL +0.8beat (editor)