JSFiddle - React, Tailwind, and code Playground

by morphcast

HTML

<script src="https://ai-sdk.morphcast.com/dev/ai-sdk.js"></script>
<body>
  <div class="container-fluid">
    <div class="row">
      <canvas id="canvas" class="col-md-8"></canvas>
      <img id="love" src="http://www.myiconfinder.com/uploads/iconsets/6fee4760aa0c07a16609b4c83eed349d-emoji.png" />
      <img id="disgust" src="https://www.emojirequest.com/images/DisgustedEmoji.jpg" />
      <div class="col-md-4">
        <strong>MorphCast JS SDK - BEAUTY DETECTOR</strong>
        <div id="attractive_result" style="word-wrap:break-word;font-size:40px"></div>
      </div>
    </div>
    <div>
      <button id="start" onclick="onStart()" disabled>Start</button>
      <button id="stop" onclick="onStop()">Stop</button>
      <p>
        <strong>Instructions</strong>
        Press the start button to start the detector.
        <br/> Press the stop button to end the detector.
      </p>
      <div>
        <strong>LOG:</strong>
      </div>
      <div id="logs"></div>
    </div>
  </div>
</body>

JavaScript

function log(msg) {
	var element = document.getElementById("logs");
  element.innerHTML += "<span>" + msg + "</span><br />";
}

function print(node, msg) {
	document.getElementById(node).innerHTML = msg;
}

function setImageVisible(id, visible) {
    var img = document.getElementById(id);
    img.style.display = (visible ? 'block' : 'none');
}

//function executes when Start button is pushed.
function onStart() {
  if (detector && !detector.isRunning) {
    detector.isRunning = true;
    detector.start();
  }
  log("Clicked the start button");
}

//function executes when the Stop button is pushed.
function onStop() {
  log("Clicked the stop button");
  if (detector && detector.isRunning) {
    detector.stop();
    detector.isRunning = false;
  }
}

let last_value = null;
const alpha = 0.1;

setImageVisible("love", false);
setImageVisible("disgust", false);

window.addEventListener(CY.modules().FACE_FEATURES.eventName, (evt) => {
  let new_value = evt.detail.output.features.Attractive;
  if (last_value === null) {
  	last_value = 0.5; 
  }
  last_value = last_value * (1-alpha) + new_value * alpha; 
  if (last_value < 0.1) {
  	setImageVisible("love", false);
    setImageVisible("disgust", true);
  } else if (last_value > 0.7) {
  	setImageVisible("love", true);
    setImageVisible("disgust", false);
  } else {
  	setImageVisible("love", false);
    setImageVisible("disgust", false);
  }
  print("attractive_result", "ATTRACTIVE: " + (last_value * 100).toFixed(0));
});


const ctx = document.getElementById('canvas').getContext('2d');
let dimLogged = false;
window.addEventListener(CY.modules().CAMERA.eventName, (evt) => {

  const imageData = evt.detail;
  if (!dimLogged) {
    log(`Camera dimensions: w: ${imageData.width}, h: ${imageData.height}`);
    dimLogged = true;
  }
  ctx.canvas.width = imageData.width;
  ctx.canvas.height = imageData.height;
  ctx.putImageData(imageData, 0, 0);
  
});

var detector = {};
detector.isRunning = false;

CY.loader()
 ...