<aside> 💡 Take the 3rd pose picture once countdown3 is over

</aside>

Notes

Global variable image3 which will refer to our 3rd pose picture

var context3 = canvas1.getContext('2d');
let image3;

function  picture3(){
   image3 =context3.drawImage(video, 0, 0, 500,500);
   document.getElementById('snap').disabled= false;
}

Read notes for picture1 here

Additionally we enable the start <button> by setting the disabled attribute to false