Multi-image composition using SeedDream v4.5 Edit

Combine up to 10 food images into a single composed image. Perfect for creating menu layouts, composite dishes, or complex scenes.

Request body: { "image_urls": ["url1", "url2", ...] (1-10 images), "prompt": "description of desired composition", "weights": [0.5, 0.3, 0.2, ...] (optional, must sum to 1.0), "aspect_ratio": "4:3" | "16:9" | "1:1" | "3:4" | "9:16", "num_outputs": 1-4 }