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Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

            
               <div class="container">
   <div class='row'>
     <div class="col-sm-12" id="buttons-row">
        <h1>Web SnapChat Clone</h1>
       <h6> because sometimes bunnies & hamsters are cuter than humans</h6>
      <button class="btn btn-default"id="flower-crown"><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/flower-crown.png"></button>
      <button class="btn btn-default" id="bunny-ears"><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/bunny-ears.png"></button> 
      <button class="btn btn-default"id="doggy"><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/dog-face.png"></button>
      <button class="btn btn-default" id="hearts"><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/hearts.png"></button>     
       </div> <!-- end of col-sm-12 -->
    </div> <!-- end of row -->     
     <div class="row justify-content-center videorow">
      <video id="video" width="500" height="325" preload autoplay loop muted></video>
      <canvas id="canvas" width="500" height="325"></canvas>  
   </div><!-- end of row -->
       <div class="row justify-content-center videorow">
         <button class="btn btn-default" id="snap" onclick="snap()"></button>
       </div>
</div> <!-- end of row -->
<div class="row">
       <div class="col-sm-12 justify-content-center videorow" id="output">
           <canvas id="canvas2" width="500" height="325"></canvas>                                                                      </div>
</div>
</div><!-- end of container -->

         
         <!-- CREDITS
0. No copyright infringments intended
1. Image: https://ibankcoin.com/flyblog/2017/02/16/king-unicorn-come-public-will-buy-snap-opening-tick/
2.http://www.instructables.com/id/Facial-Recognition-With-Trackingjs/
-->
            
          
!

CSS

            
              import url("https://fonts.googleapis.com/css?family=Lato:400,400i,700");

body{
  background-image: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/snap1.png");
  background-size: 100px;
 font-family: Lato, sans-serif; 
}
.container{
  margin-top: 150px;
  background-color:#FFFFFF ;
  border: 12px solid #FFFC00;
  width: 700px;
}
h1, h6{
  font-weight: 900;
  text-transform: uppercase;
   color: #8e7ba7;   
}

.row{
  margin: 30px;
  text-align:center;
}
.btn{
 margin-bottom: 10px;
}

.btn-default{
 background-color: #FFFFFF;
  text-transform: uppercase;
  border: 1px solid #8e7ba7;
  border-radius: 60px;
  height: 90px;
  width: 90px;
}
#snap{
  width: 40px;
  height: 40px;
  border-radius: 40px;
  background-color: #FFFC00;
}
img{
  width: 80px;
  height: 60px;
  margin-left: -8px;

}
#canvas{
  margin-left: -500px;
  /*border: 1px solid red; */
}


            
          
!

JS

            
              
const canvas = document.getElementById('canvas');
const context = canvas.getContext('2d');
const tracker = new tracking.ObjectTracker('face');
const flowerCrownButton = document.getElementById('flower-crown');
const bunnyEarsButton = document.getElementById('bunny-ears');
const doggyButton = document.getElementById('doggy');
const heartsButton = document.getElementById('hearts');
tracker.setInitialScale(3);
tracker.setStepSize(1.7);
tracker.setEdgesDensity(.2);



// image constructor create new image element
//new Image();
// image(w,h)
const img = document.createElement("img");
img.setAttribute("id", "pic");
img.src = canvas.toDataURL();

let filterX = 0;
let filterY = 0;
let filterWidth = 0;
let filterHeight = 0;

function changePic (x, y, width, height, src) {
 // alert("function changePic")
  img.src = src;
  filterX = x;
  filterY = y;
  filterWidth = width;
  filterHeight = height;
}


function flowerCrown () {
  //alert("ok")
  changePic(0, -0.5, 1, 1, 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/flower-crown.png')
}

flowerCrownButton.addEventListener('click', flowerCrown);


/*
bunnyEarsButton.addEventListener('click', () => {
  //alert("ok")
  changePic(-0.5, -1, 2, 2, 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/bunny-ears.png')
})

function doggy () {
  //alert("ok")
  changePic(0, -1, 1, 3, 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/dog-face.png')
}

doggyButton.addEventListener('click', doggy);


function hearts( ) {
  changePic(0, -1, 2, 2, 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/450347/hearts.png')
}

heartsButton.addEventListener('click', hearts);
*/

//listen for track events
tracker.on('track', function(event) {
  //if (event.data.length === 0) {
    //alert("No objects were detected in this frame.");
  //} else {
context.clearRect(0, 0, canvas.width, canvas.height)
  event.data.forEach(rect=> {
  //alert(JSON.stringify(rect))
 context.drawImage(img, rect.x + (filterX * rect.width),
    rect.y + (filterY * rect.height),
    rect.width * filterWidth,
    rect.height * filterHeight
  )  
  })
});

//start tracking
tracking.track('#video', tracker, { camera: true })




  var canvas2 = document.getElementById('canvas2');
var context2 = canvas2.getContext('2d');
var video = document.querySelector("video");
var w, h, ratio;


video.addEventListener("loadedmetadata", function() {
  ratio = video.videoWidth / video.videoHeight;
   w = video.videoWidth - 100;
     h = parseInt(w / ratio, 10);
    canvas2.width = w;
    canvas2.height = h;
}, false);

function snap(){
     context2.drawImage(video, 10, 10);
  
}


            
          
!
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