Import — import image data, giving raster data, vector data, etc.
Export — export static or dynamic image data with many options
Rasterize — convert any
Mathematica graphic or expression to raster form
ArrayPlot — display an array of data, using an arbitrary color map
CellularAutomaton — apply any cellular automaton rule
Fourier,
FourierDCT,
FourierDST — apply discrete Fourier transforms
Pick — pick out elements based on a template
Map — map any function onto pixels
