{
  "scene": "garden",
  "ref_shutter": 0.002,
  "ref_shutter_fraction": "1/500",
  "hdr_method": "triangular_weight_debevec1997",
  "photos": [
    {
      "time": "time0",
      "type": "hdr_merge",
      "shooting_time": "2025:08:16 11:35:08",
      "iso": 100,
      "shutter_speed": "1/3200",
      "num_images": 3,
      "exposure_times": [
        0.002,
        0.001,
        0.0003125
      ],
      "ref_shutter": 0.002
    },
    {
      "time": "time1",
      "type": "hdr_merge",
      "shooting_time": "2025:08:16 12:40:35",
      "iso": 100,
      "shutter_speed": "1/3200",
      "num_images": 3,
      "exposure_times": [
        0.002,
        0.001,
        0.0003125
      ],
      "ref_shutter": 0.002
    },
    {
      "time": "time2",
      "type": "hdr_merge",
      "shooting_time": "2025:08:16 13:50:39",
      "iso": 100,
      "shutter_speed": "1/640",
      "num_images": 3,
      "exposure_times": [
        0.002,
        0.0005,
        0.0015625
      ],
      "ref_shutter": 0.002
    },
    {
      "time": "time3",
      "type": "hdr_merge",
      "shooting_time": "2025:08:16 15:00:51",
      "iso": 100,
      "shutter_speed": "1/3200",
      "num_images": 4,
      "exposure_times": [
        0.002,
        0.00125,
        0.0004,
        0.0003125
      ],
      "ref_shutter": 0.002
    },
    {
      "time": "time4",
      "type": "hdr_merge",
      "shooting_time": "2025:08:16 16:06:34",
      "iso": 100,
      "shutter_speed": "1/3200",
      "num_images": 3,
      "exposure_times": [
        0.002,
        0.001,
        0.0003125
      ],
      "ref_shutter": 0.002
    },
    {
      "time": "time5",
      "type": "hdr_merge",
      "shooting_time": "2025:08:16 17:15:53",
      "iso": 100,
      "shutter_speed": "1/500",
      "num_images": 4,
      "exposure_times": [
        0.002,
        0.00125,
        0.0004,
        0.002
      ],
      "ref_shutter": 0.002
    }
  ],
  "envmaps": [
    {
      "time": "time0",
      "shooting_time": "2025:08:16 11:34:50",
      "iso": 100,
      "shutter_speed": "1/500",
      "ref_shutter": 0.002
    },
    {
      "time": "time1",
      "shooting_time": "2025:08:16 12:40:26",
      "iso": 100,
      "shutter_speed": "1/500",
      "ref_shutter": 0.002
    },
    {
      "time": "time2",
      "shooting_time": "2025:08:16 13:49:26",
      "iso": 100,
      "shutter_speed": "1/500",
      "ref_shutter": 0.002
    },
    {
      "time": "time3",
      "shooting_time": "2025:08:16 14:59:48",
      "iso": 100,
      "shutter_speed": "1/500",
      "ref_shutter": 0.002
    },
    {
      "time": "time4",
      "shooting_time": "2025:08:16 16:06:24",
      "iso": 100,
      "shutter_speed": "1/500",
      "ref_shutter": 0.002
    },
    {
      "time": "time5",
      "shooting_time": "2025:08:16 17:15:10",
      "iso": 100,
      "shutter_speed": "1/500",
      "ref_shutter": 0.002
    }
  ],
  "alignment_method": "life_optical_flow"
}