JS Canvas Webcam 3D Fade Out SRC

<!DOCTYPE html>
<html>
<body bgcolor="000000">

<canvas id="myCanvas" width="300" height="300" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML5 canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");


// Fill with gradient
ctx.fillStyle ="red"
ctx.fillRect(20,40,250,800);
ctx.fillStyle =""
ctx.fillStyle ="white"
ctx.fillRect(50,40,250,800)

ctx.fillStyle ="yellow"
ctx.fillRect(80,40,250,800)
ctx.fillStyle ="blue"
ctx.fillRect(120,40,250,800)
ctx.fillStyle ="magenta"
ctx.fillRect(150,40,250,800)
ctx.fillStyle ="limegreen"
ctx.fillRect(180,40,250,800)
ctx.fillStyle ="black"
ctx.drawImage(image,210,40,250),800)
</script>

</body>
</html>
<canvas id="canvas" width='1000' height='1000'></canvas>
<body bgcolor="black" onmousemove="drawe();" onmousedown="drawe" onchange="drawe" ondoubleclick="drawe;">

<br>
<video id="video" autoplay hidden>
</video>
<canvas id="canvas" width="1000" height="1000"style="opacity:0.0;fillColor:none;">
<script>
var ii=444;
var video = document.getElementById("video");
var c = document.getElementById("canvas");
var ctx = c.getContext("2d");
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
var video = document.getElementById('video');
var mediaConfig = { video: true,audio:false};

    ii+=30;

  function zoomout(){
    ii-=5;
}
navigator.mediaDevices.getUserMedia(mediaConfig).then(function(stream) {
video.src = this.window.URL.createObjectURL(stream);
video.play();
video.addEventListener("play", function() {i = window.setInterval(function() {
canvas.style.opacity+=1233.9;
ctx.drawImage(video,ii,ii--,ii,ii)},1);
ctx.draw();
drawe();
}, false);
});
</script>
</center>
function PauseIt(mp3){
var aud=document.getElementById("aud");
aud.playbackRate=1.0;
aud.volume=1.0;
aud.pause();
}
function MuteIt(){
var aud=document.getElementById("aud");
aud.volume=.0;
}
function UnMuteIt(){
var aud=document.getElementById("aud");
aud.volume=1.0;
}
function PlayIt(mp3){
mp3=prompt("Enter URL:");
var aud=document.getElementById("aud");
aud.src=mp3;
aud.playbackRate=1.0;
aud.volume=1.0;
aud.play();
}

function StopIt(){
var aud=document.getElementById("aud");
aud.src='';
aud.playbackRate=1.0;
aud.volume=1.0;
aud.play();
}
 </script>