A bilateral filter is a non-linear, edge-preserving, and noise-reducing smoothing filter for images. It replaces the intensity of each pixel with a weighted average of intensity values from nearby pixels. This weight can be based on a Gaussian distribution.Confused about your new Keurig coffee maker? Here's your ultimate guide to all of the different brew settings on the Keurig 2.0 machines.
No Keurig requires a water filter unless you're using straight tap water. If you're using filtered tap (ie Brita or Pur etc) or bottled water then a filter for the machine isn't necessary, though I doubt it would hurt either.