MAP = new ol.Map({
    target: target,
    view: new ol.View({
        center: [46000, 68000],
        zoom: 2
      })
});

var graphic = new ol.layer.Image({
    source: new ol.source.ImageStatic({
        url: layerData,
        imageExtent: imgExtent
    })
});

MAP.addLayer(graphic);