Estoy buscando ocultar el feed de video de webgazer usando Javascript. El siguiente código muestra la fuente de video y cómo ocultar la fuente de video, ya que mi tarea es dar más espacio para mostrar diagramas y texto.

 window.onload = function() { webgazer.setRegression('ridge') /* currently must set regression and tracker */ .setTracker('clmtrackr') .setGazeListener(gaze) .begin() .showPredictionPoints(true); var width = 320; var height = 240; var topDist = '100px'; var leftDist = '400px'; var setup = function() { var video = document.getElementById('webgazerVideoFeed'); video.style.display = 'block'; video.style.position = 'absolute'; video.style.top = topDist; video.style.left = leftDist; video.width = width; video.height = height; video.style.margin = '0px'; webgazer.params.imgWidth = width; webgazer.params.imgHeight = height; var overlay = document.createElement('canvas'); overlay.id = 'overlay'; overlay.style.position = 'absolute'; overlay.width = width; overlay.height = height; overlay.style.top = topDist; overlay.style.left = leftDist; overlay.style.margin = '0px'; document.body.appendChild(overlay); var cl = webgazer.getTracker().clm; function drawLoop() { requestAnimFrame(drawLoop); overlay.getContext('2d').clearRect(0, 0, width, height); if (cl.getCurrentPosition()) { cl.draw(overlay); } } drawLoop(); };