I need to produce some plots that look like these but I'm not sure what they are called in mathematica, can anyone identify them ?

Update: I want to plot triples of the form (xvalue, yvalue, intensity) in a graph like that
I need to produce some plots that look like these but I'm not sure what they are called in mathematica, can anyone identify them ?

Update: I want to plot triples of the form (xvalue, yvalue, intensity) in a graph like that
It might be ListDensityPlot with an InterpolationOrder of 0 and a black/white ColorFunction
DensityPlot! – PlatoManiac Mar 27 '13 at 15:17Is there a function for doing this ?
– Aaron Kalair Mar 27 '13 at 15:24ArrayPlot. There's also MatrixPlot, Image, Graphics[Raster[...]], and ListDensityPlot (which can interpolate). For triples you need ListDensityPlot or see this – Szabolcs Mar 27 '13 at 15:26