test/metadata/123.json

{
    "id": 123,
    "source_image": "in/123_f22.JPG",
    "source_av": 22.0,
    "target_images": [
        "gt/123/123_f2.0.JPG",
        "gt/123/123_f2.2.JPG",
        "gt/123/123_f8.0.JPG",
        "gt/123/123_f10.JPG",
        "gt/123/123_f16.JPG"
    ],
    "target_avs": [
        2.0,
        2.2,
        8.0,
        10.0,
        16.0
    ],
    "focal_length": 45,
    "ISO": 100,
    "EV": 15,
    "focus_plane_distance": 0.49,
    "focus_plane_uncertainty": 0.010000000000000009
}