# Unregistered visible-mark candidates

Synthetic detection silhouettes for marks that are measured but NOT registered:
none of these separates its positives from clean negatives yet, so shipping them
would attribute and fill corners on content that carries no mark (a false fill
is the worse error). Assets are regenerated by
`scripts/render_vendor_silhouettes.py`; a candidate is deleted from here on the
day its mark registers (the asset moves to the package `assets/`).

Measurements below are local calibration snapshots. Candidate pools are
provenance cohorts, not automatically visible-mark positives; comparison controls
are independently selected no-signal images and are not adjudicated negatives.
Each needs capture-solved alphas or vendor-accurate font work before it can
ship; `scripts/vendor_mark_calibrate.py` is the candidate-detector harness.

| Asset | Mark | Evidence | Result |
| --- | --- | --- | --- |
| `samsung_en_alpha.png` | Samsung Galaxy AI label, English locale ("AI-generated content", bottom-left) | 5 corpus files | POS 0.11-0.30 vs NEG max 0.40 (binary); tophat/gray tried, no separation. The registered Italian engine scores 0.18-0.31 on the same files -- same layout class, wrong glyph template. |
| `gemini_text_alpha.png` | "Generated with Gemini" text label (bottom-right; the registered gemini mark is the sparkle icon) | 3 corpus files | POS 0.07-0.22 vs NEG max 0.32; coverage gate finds the blob (0.29-0.35) but the Arial silhouette misses Google's letterforms. |
| `notebooklm_alpha.png` | NotebookLM wordmark (bottom-right) | 12 corpus files | locate geometry not yet fitted; POS max 0.12. |
| `dola_alpha.png` | DolaAI on images (the video mark is registered) | 12 corpus files | POS 0.11-0.21 vs NEG max 0.30. |
| `mindvideo_alpha.png` | MindVideo.AI (top-right) | 11 corpus files | POS 0.29-0.32 vs NEG max 0.30 -- borderline overlap, not shippable. |
| `xinghui_alpha.png` | 星绘AI生成 (parked before this set) | -- | prior parking, unchanged. |
| `qingyan_alpha.png` | 清言·AI生成 (parked before this set) | -- | prior parking, unchanged. |
| `hailuo_alpha.png` | Hailuo AI image wordmark (parked before this set; the VIDEO label is registered) | -- | prior parking, unchanged. |
| `catlogo_alpha.png` | outline cat-head + AI生成 (parked before this set) | -- | prior parking, unchanged. |
