title: OpenCV: Single face detection
body: <p>Would like to know how can I limit the for loop to work only with the first face, that is faces[0]</p>
  
  <pre><code>#faces here is rectangular co-ordinates. Example
  #[((113, 18, 394, 358), 33)] for a single face
      if faces:
           for i in faces:
           #Detection Code here
  </code></pre>