Image Similarity Graph — Index Statistics

Image Similarity Graph — Index Statistics

> Phase 3.5 local index. No AI-Vision call, canon assignment or production > integration was performed.

Scope and gate

- Nodes: 132/132 - Pairwise comparisons: 8,646 - Stored edges: 1,509 - pHash edges: 728 - Color-layout edges: 781 - Nodes with neighbors: 132 - Possible duplicate pairs: 3 - Canonical edges: 0 - Production integration: `blocked_pending_approval` - Index size: approximately 793 KiB

The index stores each algorithm as an independent edge. All edges are `verificationState: analyzed` and `canonical: false`.

Score distribution

pHash

- Minimum: 0.312500 - Maximum: 1.000000 - Mean: 0.532251 - Median: 0.531250 - Selection: top 8 per node plus score ≥ 0.820000

Color layout

- Minimum: 0.714028 - Maximum: 1.000000 - Mean: 0.908877 - Median: 0.929306 - Selection: top 8 per node plus score ≥ 0.975000

The color threshold is deliberately above the corpus median. Caelinus boards share a dark/gold art direction, so a lower color threshold creates a dense and low-information graph.

Strongest multi-algorithm pairs

1. `IMG-CAEL-0082` ↔ `IMG-CAEL-0083` - pHash: 1.000000 - color layout: 1.000000 - SHA-256 equal: yes 2. `IMG-CAEL-0107` ↔ `IMG-CAEL-0112` - pHash: 1.000000 - color layout: 1.000000 - SHA-256 equal: yes 3. `IMG-CAEL-0069` ↔ `IMG-CAEL-0070` - pHash: 0.968750 - color layout: 0.985872 - SHA-256 equal: no 4. `IMG-CAEL-0066` ↔ `IMG-CAEL-0067` - pHash: 0.937500 - color layout: 0.973433 5. `IMG-CAEL-0130` ↔ `IMG-CAEL-0132` - pHash: 0.906250 - color layout: 0.990115 6. `IMG-CAEL-0126` ↔ `IMG-CAEL-0130` - pHash: 0.906250 - color layout: 0.984273 7. `IMG-CAEL-0119` ↔ `IMG-CAEL-0120` - pHash: 0.906250 - color layout: 0.981545

These are similarity candidates, not editorial duplicate decisions. No file was deleted, merged, renamed or marked canonical.

Limitations

- pHash captures low-frequency visual structure, not lore or semantic meaning. - Color layout captures coarse palette placement; shared art direction can inflate similarity. - Exact SHA equality is strong duplicate evidence but still requires archive owner approval before any content action. - Sequence, production-page and concept-art relationships are not created by this index. They require a separate human-approved review layer.