ImageEditJsonRequest

{
    "model": "gpt-image-1.5",
    "prompt": "Add a watercolor effect to this image",
    "images": [
        {
            "image_url": "data:image/png;base64,iVBOR..."
        }
    ],
    "mask": {
        "image_url": "data:image/png;base64,iVBOR...",
        "file_id": "file-mask456"
    },
    "n": 1,
    "quality": "low",
    "size": "1024x1024",
    "output_format": "png",
    "output_compression": 90,
    "background": "auto",
    "moderation": "auto",
    "partial_images": 2,
    "stream": false,
    "user": "user-abc123"
}