func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    let fetchResult = PHAsset.fetchAssetsWithMediaType(PHAssetMediaType.Image, options: nil)
    fetchResult.enumerateObjectsUsingBlock ({result, index, stop in
        if let asset = result as? PHAsset {
            if let location = asset.location {
                let lat = location.coordinate.latitude as Double
                let lng = location.coordinate.longitude as Double
                print("GPS:(lat),(lng)")
            }
        }
    })
}

let fetchResult = PHAsset.fetchAssetsWithMediaType(PHAssetMediaType.Image, options: nil)

let url = info[UIImagePickerControllerReferenceURL] as! NSURL
let fetchResult = PHAsset.fetchAssetsWithALAssetURLs([url], options: nil)