code: function (x, y, funcName) {
  		var idx = this.getIndex(x, y);
  		return this.getBlurPixelAtIndex(idx, funcName);
  	}
docs: Gets the blur-value of a pixel at a specific coordinate
  
  @method getBlurPixel
  @param {int} x X-coordinate of pixel
  @param {int} y Y-coordinate of pixel
  @param {string} [funcName] Gray-scale function
  @return {int} blur-value