IMELLIPSE

IMELLIPSE(r;cx;cy;hr;vr;c;cf;p) draws an ellipse with centre (cx, cy), horizontal radius hr (default 40), vertical radius vr (default 40), colour cl, fill colour cf (default 0) and opacity p (0≤p≤1, where 0 is transparent and the default of 1 is solid) on the RGB image in matrix r.