Module: Visioner

Defined in:
lib/visioner.rb,
lib/visioner/version.rb

Constant Summary collapse

VERSION = 
"1.1.5"

Class Method Summary collapse

Class Method Details

.get_label(image_name) ⇒ Object 



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# File 'lib/visioner.rb', line 36

def self.get_label(image_name)
  # Open image
  image = MiniMagick::Image.open(image_name)

  # Resize image
  image.resize "640x" + image.height.to_s if image.width > 640
  image.resize image.width.to_s + "x480" if image.height > 480

  # Convert image to Base 64
  b64_data = Base64.encode64(image.to_blob)

  # Prepare request
  api_key = ENV['GOOGLE_API_KEY']
  content_type = "Content-Type: application/json"
  url = "https://vision.googleapis.com/v1/images:annotate?key=#{api_key}"
  data = {
    "requests": [
      {
        "image": {
          "content": b64_data
        },
        "features": [
          {
            "type": "LABEL_DETECTION",
            "maxResults": 1
          }
        ]
      }
    ]
  }.to_json
  url = URI(url)
  req = Net::HTTP::Post.new(url, initheader = {'Content-Type' =>'application/json'})
  req.body = data
  res = Net::HTTP.new(url.host, url.port)
  res.use_ssl = true

  label = 'unknown'
  res.start do |http|
    resp = http.request(req)
    json = JSON.parse(resp.body)
    if json && json["responses"] && json["responses"][0]["labelAnnotations"] && json["responses"][0]["labelAnnotations"][0]["description"]
      label = json['responses'][0]['labelAnnotations'][0]['description']
      label = label.tr(" ", "-")
    end
  end

  return label
end

.get_place(latitude, longitude, type) ⇒ Object 



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# File 'lib/visioner.rb', line 11

def self.get_place(latitude, longitude, type)
  # Prepare request
  url = "https://maps.googleapis.com/maps/api/geocode/json?latlng=#{latitude},#{longitude}"
  url = URI(url)
  req = Net::HTTP::Get.new(url)
  res = Net::HTTP.new(url.host, url.port)
  res.use_ssl = true

  # Get place
  place = 'unknown'
  res.start do |http|
    resp = http.request(req)
    json = JSON.parse(resp.body)
    if json && json['status'] == 'OK' && json['results'][0]['address_components'] && json['results'][0]['address_components'].select {|address_component| address_component['types'][0] == type }
      place = json['results'][0]['address_components'].select {|address_component| address_component['types'][0] == type }
      if place[0]
        place = place[0]['long_name']
        place = place.downcase.tr(" ", "-")
      end
    end
  end

  return place
end

.rename_all(images, options) ⇒ Object 



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# File 'lib/visioner.rb', line 85

def self.rename_all(images, options)
  images.each do |image_name|

    # Check file
    if ! File.readable?(image_name)
      puts "Error: can't read file. Continuing..."
      next
    elsif File.extname(image_name) != '.jpg'
      puts "Error: can only rename jpg files. Continuing..."
      next
    end

    label = ''
    if options[:format].include? 'label'
      label = self.get_label(image_name)
    end

    date = ''
    if options[:format].include? 'date'
      date = File.mtime(image_name).strftime('%m-%d-%Y') # Fallback
      exif = EXIFR::JPEG.new(image_name)
      date = exif.date_time_original.strftime('%m-%d-%Y') if exif && exif.date_time_original
    end

    country = ''
    if options[:format].include? 'country'
      country = 'unknown' # Fallback
      exif = EXIFR::JPEG.new(image_name)
      country = self.get_place(exif.gps.latitude, exif.gps.longitude, 'country') if exif && exif.gps_latitude && exif.gps_longitude
    end

    locality = ''
    if options[:format].include? 'locality'
      locality = 'unknown' # Fallback
      exif = EXIFR::JPEG.new(image_name)
      locality = self.get_place(exif.gps.latitude, exif.gps.longitude, 'locality') if exif && exif.gps_latitude && exif.gps_longitude
    end

    new_image_name = options[:format].dup
    new_image_name.sub! 'label', label
    new_image_name.sub! 'date', date
    new_image_name.sub! 'locality', locality
    new_image_name.sub! 'country', country

    counter = nil
    while File.exist?(File.dirname(image_name) + "/" + new_image_name + counter.to_s + File.extname(image_name)) do
      counter = 1 if counter == nil
      counter = counter.to_i + 1
    end

    puts "#{File.basename(image_name)} -> #{new_image_name + counter.to_s + File.extname(image_name)}"

    File.rename(image_name, File.dirname(image_name) + "/" + new_image_name + counter.to_s + File.extname(image_name))

  end
end