title: What methods could I use to dynamically apply a sepia tone to an image in to a web page using PHP?
body: <p>I have a webpage that loads thumbnails of images and I want to show old images with a sepia tone. The thumb will always be the same dimensions so could I just make a transparent png file and show it over the image? Should I use something like imagemagick or is this overkill?</p>
  
  <p>Any suggestions?
  Cheers</p>