• you get the characters as text format from the image file with characters
  • first step
    • you prepare the image file with characters (any language, of course Japanese too)
    • you prepare the API Key of Google Cloud Vision API
  • second step
    • exec method in this gem
  • third step
    • you get the characters as text format :)

$ gem install character_recognition_by_vision_api

• in this repository, I prepare sample_image.png

• the official site of Google Cloud Vision API is here
  • Vision API | Google Cloud Platform
• you acquire API Key at Google Cloud Platform Service
  • the detail of procedure is omitted on this document
  • the blue part of below image contains API Key

require 'character_recognition_by_vision_api'

CharacterRecognitionByVisionApi.extract_to_text(image_file, api_key)

• 🎉you get the characters as text format🎉

あいうえおかきくけこさしすせそた
ちってとなにぬねのはひふへぼまみ
むめもやゆよらりる丸ろわをんーゑ
H本語表示サンプJ 1 2 3 4 5 60
ABCDE FGHIJKLMNOP

• looks almost good :)

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/corselia/character-recognition-by-vision-api.

The gem is available as open source under the terms of the MIT License.