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BGfilter/configs/default.yaml
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lhk229 b0a634dfd4 Add recolor pass to clean residual contamination colour
Add bgfilter/recolor.py: after despill, propagate clean neighbour chroma into
pixels whose colour is still off (residual green, or the magenta a green unmix
overshoots into), keeping luminance partway so hair texture survives. It installs
a real observed colour rather than subtracting, so it cannot overshoot. Despill
already neutralises the matte edge (off ~ 0 there), so recolor only touches the
contaminated interior and the wisps the dropout-fill rescued.

Runs as a final colour pass on the despilled foreground; pymatting + despill keep
their stronger edge handling. On the samples the magenta fringe drops sharply
(TestImage vis-magenta 0.065->0.014, TestImage2 0.085->0.031) with edge green
unchanged (vis-green ~0.02). Debug output color_mask.png replaces the despill /
foreground-background / foreground-correction maps; smoke updated.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-30 22:19:15 +08:00

66 lines
1.4 KiB
YAML

model:
model_name: hustvl/vitmatte-base-composition-1k
device: cuda
matting_method: vitmatte
fallback_to_chroma_alpha: false
segmentation:
enabled: true
model_name: ZhengPeng7/BiRefNet
device: cuda
input_size: 1024
trimap:
sure_bg_threshold: 0.92
sure_fg_threshold: 0.12
unknown_radius_ratio: 0.012
fg_safe_radius_ratio: 0.006
seg_core_threshold: 0.60
seg_loose_threshold: 0.08
alpha_post:
chroma_suppress: true
chroma_suppress_bg_low: 0.35
chroma_suppress_bg_high: 0.80
chroma_suppress_strength: 1.0
seg_fill: true
seg_fill_alpha_max: 0.10
seg_fill_seg_min: 0.10
seg_fill_strength: 0.70
foreground:
enabled: true
method: ml
fallback_to_unmix: true
ml_regularization: 0.00001
# Legacy "unmix" method params (used only when method: unmix).
edge_low: 0.005
edge_high: 0.995
min_unmix_alpha: 0.08
unmix_strength: 0.70
local_strength: 0.45
local_blur_radius: 11
local_alpha_threshold: 0.92
local_bg_confidence_max: 0.20
green_excess_margin: 0.015
bg_confidence_weight: 0.70
despill:
enabled: true
edge_low: 0.005
strength: 0.92
green_excess_margin: 0.015
edge_expand_radius: 2
alpha_weight_floor: 0.35
recolor:
enabled: true
person_threshold: 0.5
coverage_soft: 0.08
contam_low: 0.02
contam_high: 0.12
clean_dom_max: 0.03
propagate_radius_ratio: 0.02
min_reference_weight: 0.05
luminance_strength: 0.5