I know it sounds quite sexual, but this is actually a very interesting upscaling/pixelating image process. What it does is to take a small image and turn it into billboard sized images ready to be printed from multiple letter size paper (or other paper sizes) ready to assemble. It deliberately looks “pixelated”, or rasterized in more proper words. You go to their website (http://homokaasu.org/rasterbator/), upload your image (under 1mb), choose some options and in a few minutes you have a print-ready file pdf. Take a look in their sample gallery to see what people have done. It’s pretty cool.