Collage Layout Expert Agent Skill

Collage & Layout Composition Expert

Expert in ALL forms of computational collage composition - from Instagram grids to Hockney joiners, from magazine layouts to generative art.

When to Use This Skill

✅ Use for:

• Grid Collages: Instagram profiles, regular layouts, tiled compositions
• Photo Mosaics: Small images forming larger pictures
• Hockney-Style Joiners: Multi-perspective photographic assemblies
• Scrapbook/Journal: Mixed media with text, frames, embellishments
• Magazine/Editorial: Professional layouts with text integration
• Vision/Mood Boards: Inspiration collections, design references
• Memory Walls: Scattered Polaroid-style arrangements
• Social Media: Stories, carousel previews, profile grids
• Abstract/Generative: Algorithmic and procedural arrangements
• Art-Historical: Dadaist, Surrealist, Pop Art styles

❌ Do NOT use for:

• Simple image editing → native-app-designer
• Generating new images → Stability AI
• Single photo quality → photo-composition-critic
• Image similarity search → clip-aware-embeddings
• Color palette extraction → color-theory-palette-harmony-expert

Expert vs Novice Shibboleths

| Topic | Novice | Expert |

|-------|--------|--------|

| Layout | "Just arrange randomly" | Visual weight, balance, golden ratio |

| Blending | Hard edges or simple feather | Poisson blending preserves gradients |

| Color | "Match colors manually" | Optimal transport; LAB space advantages |

| Composition | Fills all space | Negative space as design element |

| Scale | Same size for everything | Varies scale for hierarchy |

| Mosaic | "More tiles = better" | Tile size vs. recognition tradeoff |

| Hockney | "Stitch seamlessly" | Imperfection IS the technique |

Decision Tree: Choosing a Style

What's the purpose?

• Systematic display → Grid Collage
• Artistic portrait from photos → Photo Mosaic
• Personal memories → Scrapbook or Memory Wall
• Design inspiration → Mood Board
• Professional/publication → Magazine Layout
• Social media → Social Templates
• Art project → Hockney/Dadaist/Surrealist

What's the vibe?

• Clean, modern → Grid with tight gutters
• Nostalgic, warm → Polaroid scatter, vintage frames
• Edgy, disruptive → Dadaist sharp cuts
• Dreamy, surreal → Seamless Poisson blending
• Cubist, intellectual → Hockney joiners

Core Algorithms (Summary)

| Algorithm | Use Case | Performance |

|-----------|----------|-------------|

| Edge-Based Assembly | Hockney joiners | 0.5s for 10 photos |

| Poisson Blending | Seamless transitions | 20ms (512×512) |

| Optimal Transport | Color harmonization | Real-time w/ affine approx |

| Force-Directed | Organic scatter | 200ms (50 images) |

| K-d Tree Matching | Photo mosaic tiles | 2s for 10k tiles |

→ See references/algorithms.md for full implementations.

Anti-Patterns to Avoid

1. Ignoring Visual Weight

What it looks like: All images same size, random placement

Why it's wrong: No focal point, viewer's eye wanders aimlessly

Fix: Establish 60/30/10 hierarchy with one hero image

2. Over-Saturating the Canvas

What it looks like: Every pixel filled with image content

Why it's wrong: Visual claustrophobia, no breathing room

Fix: Use negative space intentionally (20-30% white space minimum)

3. Linear FFT for Color Matching

What it looks like: Poor perceptual color matches

Why it's wrong: RGB is not perceptually uniform

Fix: Use LAB color space for matching

4. Seamless Hockney Joiners

What it looks like: Perfectly stitched panorama

Why it's wrong: Misses the entire point - multiple perspectives

Fix: Embrace ±2° rotation variance, 5-15% overlap, intentional gaps

5. Global Poisson Blending

What it looks like: Entire image becomes washed out

Why it's wrong: Destroys local contrast, looks fake

Fix: Apply locally at seams only, preserve source gradients

6. Reusing Mosaic Tiles

What it looks like: Obvious repetition patterns in mosaic

Why it's wrong: Human eye detects patterns immediately

Fix: Track tile usage, penalize reuse, use larger tile library

MCP Integrations

| MCP | Purpose |

|-----|---------|

| Stability AI | Generate backgrounds, textures, missing elements |

| Firecrawl | Research techniques, algorithm papers, art history |

| WebFetch | Fetch documentation, tutorials, design references |

Performance Targets

| Operation | Mac M2 | iPhone 15 Pro |

|-----------|--------|---------------|

| Grid layout (20 photos) | <50ms | <100ms |

| Photo mosaic (10k tiles) | 2s | 5s |

| Force-directed (50 images) | 200ms | 500ms |

| Poisson blending (512×512) | 20ms | 50ms |

| Hockney assembly (10 photos) | 0.5s | 2s |

References

→ references/collage-types.md - Grid, mosaic, scrapbook, magazine, social templates

→ references/art-historical-styles.md - Hockney, Dadaist, Surrealist, Rauschenberg

→ references/algorithms.md - Edge assembly, Poisson, optimal transport, force-directed

→ references/advanced-techniques.md - Cross-photo interactions, narrative sequences

→ references/implementation-guide.md - Metal shaders, Core ML, performance

Integrates With

• photo-composition-critic - Assess individual photos before collaging
• color-theory-palette-harmony-expert - Extract/match color palettes
• clip-aware-embeddings - Semantic grouping of images
• native-app-designer - Build collage creation UI
• metal-shader-expert - GPU-accelerated blending/effects

Remember: Great collages tell stories through arrangement. Whether grid-precise or Hockney-chaotic, the layout serves the narrative. Master both the math and the art.