{
  "scene": "road",
  "ref_shutter": 0.01,
  "ref_shutter_fraction": "1/100",
  "hdr_method": "triangular_weight_debevec1997",
  "photos": [
    {
      "time": "time0",
      "type": "hdr_merge",
      "shooting_time": "2025:08:11 19:49:26",
      "iso": 100,
      "shutter_speed": "1/400",
      "num_images": 2,
      "source_files": [
        "DSC00260.dng",
        "DSC00262.dng"
      ],
      "exposure_times": [
        0.01,
        0.0025
      ],
      "ref_shutter": 0.01
    },
    {
      "time": "time1",
      "type": "hdr_merge",
      "shooting_time": "2025:08:11 20:02:55",
      "iso": 100,
      "shutter_speed": "1/250",
      "num_images": 2,
      "source_files": [
        "DSC00263.dng",
        "DSC00264.dng"
      ],
      "exposure_times": [
        0.01,
        0.004
      ],
      "ref_shutter": 0.01
    },
    {
      "time": "time2",
      "type": "hdr_merge",
      "shooting_time": "2025:08:11 20:17:21",
      "iso": 100,
      "shutter_speed": "1/250",
      "num_images": 2,
      "source_files": [
        "DSC00266.dng",
        "DSC00267.dng"
      ],
      "exposure_times": [
        0.01,
        0.004
      ],
      "ref_shutter": 0.01
    },
    {
      "time": "time3",
      "type": "hdr_merge",
      "shooting_time": "2025:08:11 20:36:10",
      "iso": 100,
      "shutter_speed": "1/13",
      "num_images": 3,
      "source_files": [
        "DSC00269.dng",
        "DSC00270.dng",
        "DSC00271.dng"
      ],
      "exposure_times": [
        0.01,
        0.03333333333333333,
        0.07692307692307693
      ],
      "ref_shutter": 0.01
    },
    {
      "time": "time4",
      "type": "hdr_merge",
      "shooting_time": "2025:08:11 20:52:28",
      "iso": 100,
      "shutter_speed": "1/4",
      "num_images": 3,
      "source_files": [
        "DSC00272.dng",
        "DSC00273.dng",
        "DSC00274.dng"
      ],
      "exposure_times": [
        0.01,
        0.1,
        0.25
      ],
      "ref_shutter": 0.01
    },
    {
      "time": "time5",
      "type": "hdr_merge",
      "shooting_time": "2025:08:11 21:06:49",
      "iso": 100,
      "shutter_speed": "1/1",
      "num_images": 3,
      "source_files": [
        "DSC00276.dng",
        "DSC00277.dng",
        "DSC00278.dng"
      ],
      "exposure_times": [
        0.01,
        0.25,
        0.8
      ],
      "ref_shutter": 0.01
    },
    {
      "time": "time6",
      "type": "hdr_merge",
      "shooting_time": "2025:08:11 21:22:03",
      "iso": 100,
      "shutter_speed": "2.0s",
      "num_images": 3,
      "source_files": [
        "DSC00280.dng",
        "DSC00281.dng",
        "DSC00282.dng"
      ],
      "exposure_times": [
        0.1,
        0.8,
        2.0
      ],
      "ref_shutter": 0.01
    }
  ],
  "envmaps": [
    {
      "time": "time0",
      "shooting_time": "2025:08:11 19:48:32",
      "iso": 100,
      "shutter_speed": "1/100",
      "ref_shutter": 0.01
    },
    {
      "time": "time1",
      "shooting_time": "2025:08:11 20:02:33",
      "iso": 100,
      "shutter_speed": "1/100",
      "ref_shutter": 0.01
    },
    {
      "time": "time2",
      "shooting_time": "2025:08:11 20:17:34",
      "iso": 100,
      "shutter_speed": "1/100",
      "ref_shutter": 0.01
    },
    {
      "time": "time3",
      "shooting_time": "2025:08:11 20:36:00",
      "iso": 100,
      "shutter_speed": "1/100",
      "ref_shutter": 0.01
    },
    {
      "time": "time4",
      "shooting_time": "2025:08:11 20:51:00",
      "iso": 100,
      "shutter_speed": "1/100",
      "ref_shutter": 0.01
    },
    {
      "time": "time5",
      "shooting_time": "2025:08:11 21:06:24",
      "iso": 100,
      "shutter_speed": "1/100",
      "ref_shutter": 0.01
    },
    {
      "time": "time6",
      "shooting_time": "2025:08:11 21:21:16",
      "iso": 100,
      "shutter_speed": "1/10",
      "ref_shutter": 0.01
    }
  ],
  "alignment_method": "life_optical_flow"
}