Matlab - Imagen en cuadro de dialogo - Matlab

myicon = imread('scrcapture1.png');

h=msgbox('imagen','Success','custom',myicon);

myicon = imread('landOcean.jpg');

h=msgbox('Operation Completed','Success','custom',myicon)

h.CurrentAxes.Position=[0    0    h.Position(3)   h.Position(4) ]