video-workbench/projects/2026-06-23-在路上/visual-system/characters/character-transparent-slice-front-repair-v2.md

Character Transparent Slice Front Repair V2

Status

• Review status: accepted as part of the v2-from-anchor transparent slice set.
• Scope: front full-body slice only.
• Repair reason: the first generated transparent slice set drifted away from the accepted v2 character anchor.
• Repair strategy: derive the front slice directly from the accepted v2 anchor board instead of regenerating a new person from text.
• Next gated action: completed by character-transparent-slices-v2-from-anchor-review.md.

Source

Accepted anchor board:

visual-system/characters/character-anchor-v2-codex-posture-test.png

Source crop:

visual-system/characters/character-anchor-v2-front-reference-crop-tight.png

Final alpha PNG candidate:

visual-system/characters/character-slice-front-v2-from-anchor.png

Preview:

visual-system/characters/character-slice-front-v2-from-anchor-preview.png

Execution Method

This repair did not use independent prompt-only generation.

Method:

1. Crop the front full-body standing figure from the accepted v2 anchor board.
2. Remove the light board background locally.
3. Save the result as a transparent PNG.
4. Preserve the old rejected v1 front slice as failed-trial evidence.

Crop box from the v2 board:

(20, 104, 264, 835)

Local processing environment:

C:\Users\wangq\.cache\codex-runtimes\codex-primary-runtime\dependencies\python\python.exe

Validation

Final file:

visual-system/characters/character-slice-front-v2-from-anchor.png

Validation result:

Check	Result
Mode	RGBA
Size	488x1440
Four corners transparent	Pass: [0, 0, 0, 0]
Source identity	Directly derived from accepted v2 front figure
New-person generation risk	Avoided

Alpha summary:

transparent=247699
partial=33986
opaque=421035

Review Notes

Strengths:

• Identity matches v2 because the figure is cropped from v2 itself.
• Front face, glasses, hair, beard, coat, backpack straps, pants, and boots are preserved.
• No new prompt-only person was synthesized.
• Full body is retained.

Known limitations:

• Resolution is limited by the front cell inside the 16:9 anchor board.
• Some soft edge cleanup is image-processing based, not model-native transparency.
• This is a better identity anchor than the rejected v1 front slice, but not a high-resolution regenerated character render.

Recommendation

Use this as the front transparent-slice candidate if identity fidelity is more important than maximum resolution.

After user approval, repair side using the same principle: derive or reference-bind from the accepted v2 anchor board first, rather than text-only regeneration.