title: What's the benefit of Rails asset pipeline for images
body: <p>Asset Pipeline is made up of 3 processes - precompile, concatenation, and minification.</p>
  
  <p>I understand that JavaScript and CSS can benefit from it. However, I can't think of any benefits for images.</p>
  
  <p>Can you explain it, please?</p>
  
  <p>Thanks.</p>
  
  <p>Sam</p>