ALwrity/docs/image studio/IMAGE_STUDIO_EDITING_SERVICE_INTEGRATION_SUMMARY.md

Image Studio Editing - Service Integration Summary

Date: Current Session
Status: ✅ COMPLETE - Service Integration with 3 WaveSpeed Models

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✅ Completed Integration

Service Layer Refactoring

File: backend/services/image_studio/edit_service.py

Changes:

1. ✅ Added import for generate_image_edit from unified entry point
2. ✅ Refactored _handle_general_edit() method to:
   • Detect WaveSpeed models (qwen-edit-plus, nano-banana-pro-edit-ultra, seedream-v4.5-edit)
   • Route to unified entry point for WaveSpeed models
   • Fall back to HuggingFace for backward compatibility
3. ✅ Maintained all existing functionality:
   • Stability AI operations (remove_background, inpaint, outpaint, etc.) - unchanged
   • HuggingFace general_edit - still works as before
   • Pre-flight validation - unchanged
   • Response format - unchanged

Routing Logic

# Detection logic:
wavespeed_models = {
    "qwen-edit-plus",
    "nano-banana-pro-edit-ultra", 
    "seedream-v4.5-edit",
}

is_wavespeed = (
    request.provider == "wavespeed" or
    (request.model and request.model in wavespeed_models)
)

If WaveSpeed:

• Uses generate_image_edit() unified entry point
• Gets validation, tracking, and error handling automatically
• Supports all 3 integrated models

If Not WaveSpeed:

• Falls back to HuggingFace (legacy behavior)
• Maintains backward compatibility

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🔄 API Endpoint

File: backend/routers/image_studio.py

Status: ✅ No changes needed

• EditImageRequest already includes model parameter (line 88)
• Endpoint /api/image-studio/edit/process already accepts model
• Service layer handles routing automatically

Usage Example:

{
  "image_base64": "...",
  "operation": "general_edit",
  "prompt": "Change the background to a beach scene",
  "model": "qwen-edit-plus",  // WaveSpeed model
  "provider": "wavespeed"     // Optional, auto-detected from model
}

---

✅ Backward Compatibility

Stability AI Operations (Unchanged)

• remove_background → Still uses Stability AI
• inpaint → Still uses Stability AI
• outpaint → Still uses Stability AI
• search_replace → Still uses Stability AI
• search_recolor → Still uses Stability AI
• relight → Still uses Stability AI

HuggingFace General Edit (Fallback)

• If model is not a WaveSpeed model → Uses HuggingFace
• If provider is not "wavespeed" → Uses HuggingFace
• All existing HuggingFace functionality preserved

WaveSpeed Models (New)

• If model is one of: qwen-edit-plus, nano-banana-pro-edit-ultra, seedream-v4.5-edit
• Or if provider is "wavespeed"
• → Routes to unified entry point

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📊 Integration Flow

API Request
    ↓
EditStudioService.process_edit()
    ↓
Operation Type Check
    ↓
┌─────────────────────────────────────┐
│  Stability AI Operations            │
│  (remove_background, inpaint, etc.)│
│  → StabilityAIService              │
└─────────────────────────────────────┘
    ↓
┌─────────────────────────────────────┐
│  General Edit                       │
│  → _handle_general_edit()           │
│     ↓                               │
│  Model Detection                    │
│     ↓                               │
│  ┌─────────────────────────────┐   │
│  │ WaveSpeed Model?            │   │
│  │ → generate_image_edit()     │   │
│  │   (unified entry point)     │   │
│  └─────────────────────────────┘   │
│     ↓                               │
│  ┌─────────────────────────────┐   │
│  │ HuggingFace (fallback)      │   │
│  │ → huggingface_edit_image()  │   │
│  └─────────────────────────────┘   │
└─────────────────────────────────────┘

---

🎯 Testing Checklist

• Test WaveSpeed model selection (qwen-edit-plus)
• Test WaveSpeed model selection (nano-banana-pro-edit-ultra)
• Test WaveSpeed model selection (seedream-v4.5-edit)
• Test HuggingFace fallback (no model or non-WaveSpeed model)
• Test Stability AI operations (unchanged)
• Test pre-flight validation (unchanged)
• Test error handling
• Test backward compatibility with existing clients

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📝 Notes

1. No Breaking Changes: All existing API calls continue to work
2. Opt-in Enhancement: WaveSpeed models are opt-in via model parameter
3. Automatic Routing: Service automatically detects and routes to appropriate provider
4. Unified Benefits: WaveSpeed models get validation, tracking, and error handling from unified entry point

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Service integration complete - Ready for frontend model selector