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Ruby + Google Vision API で画像の色合い(RGB)を得る

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tech

コード

require "google/cloud/vision"

IMAGE_ANNOTATOR = Google::Cloud::Vision.image_annotator

image_path = "https://cloud.google.com/static/vision/docs/images/bali_small.jpeg?hl=ja"

response = IMAGE_ANNOTATOR.image_properties_detection(
  image: image_path,
  max_results: 100
)

response.responses.each do |res|
  res.image_properties_annotation.dominant_colors.colors.each do |color|
    red = color.color.red.round
    blue = color.color.blue.round
    green = color.color.green.round

    puts "Red: #{red} Blue: #{blue} Green: #{green}"
  end
end

結果

GOOGLE_APPLICATION_CREDENTIALS="/path/to/service-account.json" ruby /path/to/script.rb

Red: 241 Blue: 132 Green: 178
Red: 114 Blue: 64 Green: 76
Red: 206 Blue: 212 Green: 205
Red: 228 Blue: 65 Green: 55
Red: 146 Blue: 93 Green: 106
Red: 232 Blue: 159 Green: 185
Red: 222 Blue: 225 Green: 221
Red: 187 Blue: 129 Green: 145
Red: 131 Blue: 91 Green: 115
Red: 109 Blue: 77 Green: 79

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公開日時

2022-10-18

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