You can use VideoComponent for capturing an image.

First, to instantiate the VideoComponent, you need to create a native peer:

VideoComponent videoComponent = VideoComponent.createVideoPeer("capture://video");
Player player = (Player) vc.getNativePeer();
player.realize();
VideoControl videoControl = (VideoControl) player.getControl("VideoControl");

To capture the image, you have to start video component and use getSnapshot of Video Control:

videoComponent.start();
videoControl.getSnapshot(null);

If you want to resize the video component to full screen you can use:

videoComponent.setFullScreen(false);

Other posibility is:

videoComponent.setPreferredH(Display.getInstance().getDisplayHeight());
videoComponent.setPreferredW(Display.getInstance().getDisplayWidth());

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