function varargout = Plot_Beam_Spot(x,y,pic)
   % show beam spot image
   % December 2010. Written by Sadiq Setiniyaz
   image(x,y,pic)
   deep = round(max(max(pic)));
   %colormap(getjet(deep))
   colormap(gray(256))
   hlx=xlabel('xlab');
   hly=ylabel('ylab');
   ht=title('cam_name');
   set(gca,'FontSize',12);
   set(ht,'FontSize',14,'FontWeight','bold');
   set(hlx,'FontSize',12);
   set(hly,'FontSize',12);
   drawnow