If someone could roll common image functions into one, with webpage screenshots and a way to optimize images for high resolution displays (smartly handling qual

If someone could roll common image functions into one, with webpage screenshots and a way to optimize images for high resolution displays (smartly handling quality and compression) - that would be nice. Haven't come across a good service that does either of these yet. related: Photon for WordPress adds a bunch of basic image manipulation functions as well as a cdn for images.