Microsoft::Face

A gem which will allow you to do facial analysis using the Microsoft Cognitive Services Face API

Installation

Add this line to your application's Gemfile:

gem 'microsoft-face'

And then execute:

$ bundle

Or install it yourself as:

$ gem install microsoft-face

Configuration

Microsoft::Face.configure do |config|
  config.api_key = ENV['MICROSOFT_API_KEY']
end

Usage

# read images into binary blob
image_blob1 = File.open('face1.jpg', 'rb') {|file| file.read }
image_blob2 = File.open('face2.jpg', 'rb') {|file| file.read }


# Microsoft requires us to detect the faces first. So we run them through the detection API
# And then get the biggest face detected in each image.
face_1_analysis = JSON.parse(Microsoft::Face.detect(image_blob1)).sort{|e| e['faceRectangle']['width']}.last #get largest face
face_id_1 = face_1_analysis['faceId']

# same for second image
face_2_analysis = JSON.parse(Microsoft::Face.detect(image_blob2)).sort{|e| e['faceRectangle']['width']}.last
face_id_2 = face_2_analysis['faceId']

# finally run the match
Microsoft::Face.verify(face_id_1, face_id_2)

Development

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.

Contributing