Need to highlight a certain element in array plot in mathematica

Question

The array plot is constructed using a list. I want to mark the max intensity element with a red pointer. Is it possible?

Answer 1

Is this what you are looking for

m = {{1, 0, 0, 0.3}, {2, 7, 0, 0.3}, {1, 0, 1, 0.7}};
ArrayPlot[m /. Last[Sort[Flatten[m]]] -> Red]