Module: Pano::Image

Included in:
ImageFile
Defined in:
lib/pano/image.rb

Instance Method Summary collapse

Instance Method Details

#read_info(file_path) ⇒ Object 



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# File 'lib/pano/image.rb', line 7

def read_info file_path
  json = `exiftool -d "%Y-%m-%d %H:%M:%S %z" -j "#{file_path}" 2>&1`

  return {:error => "File not found"} if json =~ /^File not found/i  

  data = JSON.parse(json)[0]
  data[:width]            = data["ImageWidth"]
  data[:height]           = data["ImageHeight"]
  data[:size]             = data["ImageSize"]
  data[:file_size]        = data["FileSize"]
  data[:camera_model]     = data["Model"]
  data[:keywords]         = data["Keywords"] || ""
  data[:owner_name]       = data["OwnerName"]  # camera owner. 
  data[:iptc_digest]      = data["IPTCDigest"] # thinking this can be used to detect photographers if OwnerName undefined
  data[:created_at]       = try_parse_date data, "CreateDate"
  data[:modified_at]      = try_parse_date data, "ModifyDate"
  data[:file_modified_at] = try_parse_date data, "FileModifyDate"
  data[:orientation]      = data[:width] > data[:height] ? 'h' : 'v'
  data[:fov]              = data["FOV"].to_f

  if data["PhotoshopQuality"].present?
    quality = data["PhotoshopQuality"]
    data[:quality] = quality <= 9 ? quality * 10 : quality
  end

  data
end