Detect faces using the detectfaces gem

require 'detectfaces'

df = DetectFaces.new('/home/james/faces3.jpg')
File.write '/tmp/faces3.html', df.to_html

`firefox /tmp/faces3.html`

In the above example an image file is read using the detectfaces gem to detect faces which are then highlighted by a green border when rendered to an HTML page as show in the output below.

Output

Resources

detectfaces https://rubygems.org/gems/detectfaces
faces3.jpg http://www.jamesrobertson.eu/r/images/2018/feb/18/faces3.jpg

detectfaces faces facedetection detect opencv

detectfaces

Runtime

Detect faces using the detectfaces gem

Resources