title: Pixelate image, pick the printable (Pantone) colors from it with PHP?
body: <p>I would like to pixelate an image and list all the colors in the image with their Pantone value so that I can superimpose the image on tiles and print them. </p>
  
  <p>So far, the pixelation is done, no problem. But how can the colors in the image be listed and their Pantone(closest) values be extracted? I cannot find any reference to this. Any existing classes/libraries?</p>
  
  <p>Thanks.</p>