Javascript Cordova从库中选择后获取图像uri

我想在选择图像表单库后获取图像uri，我当前的代码只返回编码的图像数据本身，我如何修改它以获取uri

谢谢

        navigator.camera
                    .getPicture(
                            $scope.onFileSelectSuccess,
                            $scope.onFail,
                            {
                                quality : 50,
                                correctOrientation: true,
                                encodingType: Camera.EncodingType.JPEG,
                                destinationType : navigator.camera.DestinationType.DATA_URL,
                                sourceType : navigator.camera.PictureSourceType.PHOTOLIBRARY
                            });