# NavSea Strict Audit Summary

## Scope

- Compare page: `http://192.168.200.184/newpec/navsea-compare-karatsu-20nm.html`
- Compare version: `20nm-r7-20260331-2044`
- Backend render audit: `/root/sourceserver/pbf/NavSea_Original_vs_Delivery_Render_Audit_Karatsu_20nm_2026-03-31.r7.json`

## Visual Audit

- changed pixels: `411961` / `464000`
- changed ratio: `0.887847`
- mean abs rgb: `[30.3034, 31.6079, 61.2516]`
- rms rgb: `[45.7879, 45.5806, 75.4396]`
- left crop: `[0, 150, 800, 730]`
- right crop: `[800, 150, 1600, 730]`

Artifacts:

- `/root/sourceserver/pbf/report/strict_audit/compare_full.png`
- `/root/sourceserver/pbf/report/strict_audit/compare_left.png`
- `/root/sourceserver/pbf/report/strict_audit/compare_right.png`
- `/root/sourceserver/pbf/report/strict_audit/compare_diff.png`

## Backend Render Audit

- original feature instances: `258317`
- delivery feature instances: `258317`
- result count: `516634`

Status counts:

- `extra_in_engineering`: `258317`
- `missing_in_engineering`: `258317`

Top annotation issues:

- `extra_text_in_engineering` | `bathymetry_line` | `24168`
- `text_missing_in_engineering` | `L海底地形` | `24168`
- `extra_text_in_engineering` | `depth_contour` | `11929`
- `text_missing_in_engineering` | `L等深線` | `11929`
- `extra_text_in_engineering` | `seabed_text_point` | `4499`
- `text_missing_in_engineering` | `p底質` | `4499`
- `extra_text_in_engineering` | `navigation_marks` | `1516`
- `text_missing_in_engineering` | `p航路標識群` | `1516`
- `text_missing_in_engineering` | `p地名` | `1444`
- `extra_text_in_engineering` | `place_label_sea` | `1444`

Top style semantic issues:

- `depth_numeric_missing` | `L海底地形` | `24168`
- `depth_numeric_missing` | `L等深線` | `11929`
- `safety_icon_missing` | `p航路標識群` | `1885`
- `depth_numeric_missing` | `L概略等深線` | `350`
- `clearance_numeric_missing` | `p高さ制限` | `33`

## Interpretation

- This report intentionally puts browser-rendered visual output and backend render-audit summary in one place.
- If the browser screenshot improves but backend counts do not, the current backend audit is likely blind to a browser/runtime issue such as sprite resolution.