HTML5 – Canvas, drawImage() draws image blurry

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The reason this is happening is because of Anti Aliasing.
Simply set the imageSmoothingEnabled to false like so

context.imageSmoothingEnabled = false;

Here is a jsFiddle verson

jsFiddle : https://jsfiddle.net/mt8sk9cb/

var c = document.getElementById('canvas')
var ctx = c.getContext('2d')
var playerImg = new Image()

// http://i.imgur.com/ruZv0dl.png sees a CLEAR, CRISP image
playerImg.src="http://i.imgur.com/ruZv0dl.png"

playerImg.onload = function() {
  ctx.imageSmoothingEnabled = false;
  ctx.drawImage(playerImg, 0, 0, 256, 256);
};

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