FILTREsvg

by Bartosz Zieliński

HTML

<svg xmlns="http://www.w3.org/2000/svg" width="0" height="0">
<defs>
 <filter id="grayscale" color-interpolation-filters="sRGB">
  <feColorMatrix type="matrix"  values="0.3333 0.3333 0.3333 0 0.001 0.3333 0.3333 0.3333 0 0.001 0.3333 0.3333 0.3333 0 0.001 0 0 0 1 0.001"/>
 </filter>
 </defs>
</svg>
<canvas id="myCanvas" width="300" height="300"></canvas>

JavaScript

var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
var imageObj = new Image();

imageObj.onload = function() {
  context.drawImage(imageObj, 0,0);
  
  canvas.addEventListener('mouseover', x=>{
  	context.filter = "blur(50px)"
  })
};
imageObj.src = 'http://www.html5canvastutorials.com/demos/assets/darth-vader.jpg';