Tryit Editor v1.8

Source Code:

<!DOCTYPE html>
<html>
<body>

<p>Image to use:</p>
<img id="scream" src="img_the_scream.jpg" alt="The Scream" width="220" height="277">

<p>Canvas:</p>
<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML5 canvas tag.</canvas>

<script>
document.getElementById("scream").onload=function(){
  var c=document.getElementById("myCanvas");
  var ctx=c.getContext("2d");
  var img=document.getElementById("scream");
  ctx.drawImage(img,90,130,50,60,10,10,50,60);
};
</script>

</body>
</html>

Result:

W3Schools.com - Try it yourself

Edit the code above and click "Submit Code" to see the result.