orrespond to different kinds of pixel filtering operations. There are quite a lot of filters you might want to try. <a href="https://en.wikipedia.org/wiki/Dither">Dithering</a> is a technique in which we reduce (or quantise) an image that has many colours down to an image with fewer colours, and then add some random (or not-so-random) noise to the coarser-grained image in a way that leaves it looking fairly natural. There are a lot of ways in which you can dither an image: one of the most famous is the <a h