code: public static void synchronizePixelInfoStatusBars(ImageViewer... viewers) {
  		PixelModel model=null;
  		for (ImageViewer viewer: viewers) {
  			StatusBar bar=viewer.getStatusBar();
  			if (bar instanceof PixelInfoStatusBar) {
  				if (model==null)
  					model=((PixelInfoStatusBar)bar).getModel();
  				else
  					((PixelInfoStatusBar)bar).setModel(model);
  			}
  		}
  	}
docs: Synchronizes the {@link PixelInfoStatusBar}s associated with the viewers. Viewers with a different or {@code null}
  status bar are ignored. When this function returns, the {@code PixelInfoStatusBar}s among the viewer status bars
  will share the same {@code PixelModel}, and thus display the same pixel.
  <p>
  The default status bar of ImageViewer is a {@code PixelInfoStatusBar}, so this function can be used to
  synchronize the default status bars of viewers.
  @param viewers the viewers