{
  "scene": "playground",
  "ref_shutter": 0.005,
  "ref_shutter_fraction": "1/200",
  "hdr_method": "triangular_weight_debevec1997",
  "photos": [
    {
      "time": "time0",
      "type": "hdr_merge",
      "shooting_time": "2025:08:09 19:53:25",
      "iso": 100,
      "shutter_speed": "1/640",
      "num_images": 2,
      "source_files": [
        "DSC00186.dng",
        "DSC00188.dng"
      ],
      "exposure_times": [
        0.005,
        0.0015625
      ],
      "ref_shutter": 0.005
    },
    {
      "time": "time1",
      "type": "hdr_merge",
      "shooting_time": "2025:08:09 20:07:23",
      "iso": 100,
      "shutter_speed": "1/400",
      "num_images": 2,
      "source_files": [
        "DSC00189.dng",
        "DSC00191.dng"
      ],
      "exposure_times": [
        0.005,
        0.0025
      ],
      "ref_shutter": 0.005
    },
    {
      "time": "time2",
      "type": "hdr_merge",
      "shooting_time": "2025:08:09 20:29:57",
      "iso": 100,
      "shutter_speed": "1/320",
      "num_images": 2,
      "source_files": [
        "DSC00192.dng",
        "DSC00194.dng"
      ],
      "exposure_times": [
        0.005,
        0.003125
      ],
      "ref_shutter": 0.005
    },
    {
      "time": "time3",
      "type": "hdr_merge",
      "shooting_time": "2025:08:09 20:43:00",
      "iso": 100,
      "shutter_speed": "1/40",
      "num_images": 2,
      "source_files": [
        "DSC00195.dng",
        "DSC00196.dng"
      ],
      "exposure_times": [
        0.005,
        0.025
      ],
      "ref_shutter": 0.005
    },
    {
      "time": "time4",
      "type": "hdr_merge",
      "shooting_time": "2025:08:09 20:55:36",
      "iso": 100,
      "shutter_speed": "1/15",
      "num_images": 2,
      "source_files": [
        "DSC00197.dng",
        "DSC00198.dng"
      ],
      "exposure_times": [
        0.005,
        0.06666666666666667
      ],
      "ref_shutter": 0.005
    },
    {
      "time": "time5",
      "type": "single_adjust",
      "shooting_time": "2025:08:09 21:09:20",
      "iso": 100,
      "shutter_speed": "1/6",
      "num_images": 1,
      "source_files": [
        "DSC00202.dng"
      ],
      "exposure_times": [
        0.16666666666666666
      ],
      "ref_shutter": 0.005
    },
    {
      "time": "time6",
      "type": "hdr_merge",
      "shooting_time": "2025:08:09 21:25:24",
      "iso": 100,
      "shutter_speed": "1/1",
      "num_images": 2,
      "source_files": [
        "DSC00204.dng",
        "DSC00205.dng"
      ],
      "exposure_times": [
        0.1,
        0.8
      ],
      "ref_shutter": 0.005
    }
  ],
  "envmaps": [
    {
      "time": "time0",
      "shooting_time": "2025:08:09 19:52:27",
      "iso": 100,
      "shutter_speed": "1/200",
      "ref_shutter": 0.005
    },
    {
      "time": "time1",
      "shooting_time": "2025:08:09 20:07:05",
      "iso": 100,
      "shutter_speed": "1/500",
      "ref_shutter": 0.005
    },
    {
      "time": "time2",
      "shooting_time": "2025:08:09 20:28:56",
      "iso": 100,
      "shutter_speed": "1/200",
      "ref_shutter": 0.005
    },
    {
      "time": "time3",
      "shooting_time": "2025:08:09 20:42:43",
      "iso": 100,
      "shutter_speed": "1/200",
      "ref_shutter": 0.005
    },
    {
      "time": "time4",
      "shooting_time": "2025:08:09 20:55:23",
      "iso": 100,
      "shutter_speed": "1/200",
      "ref_shutter": 0.005
    },
    {
      "time": "time5",
      "shooting_time": "2025:08:09 21:08:23",
      "iso": 100,
      "shutter_speed": "1/200",
      "ref_shutter": 0.005
    },
    {
      "time": "time6",
      "shooting_time": "2025:08:09 21:24:31",
      "iso": 100,
      "shutter_speed": "1/10",
      "ref_shutter": 0.005
    }
  ],
  "alignment_method": "life_optical_flow"
}