Publish hosted imagery layers

To upload hosted imagery layers, the environment must be configured properly, and you must have publishing privileges. Begin publishing imagery by accessing it through the home page or at any time on the side navigation menu under Publish Layer.

To create and publish an imagery layer, complete the following steps:

1. Click Publish New Hosted Web Layers on the Excalibur home page.

   Alternatively, from the side navigation menu, click Publish Layer .

2. Choose a new imagery layer configuration from the Imagery Layer section:
   • Single Image—Create one imagery layer from a single image resource.
   • Image Mosaic—Create one imagery layer by mosaicking many images. This is useful to blend overlapping images into a single, seamless image layer.
   • Image Collection—Create an imagery layer that manages a collection of many images. This is useful to query the resulting imagery layer for the properties of individual images.
3. For Item Name, provide an item name for the layer.
4. For Folder Name, specify where the new layer will be created.
5. Optionally, for Summary, provide a description of the layer.
6. Optionally, for Tags, provide one or more tags.

   Separate the terms with commas. For example, federal land is one tag, but federal, land is two tags.

7. Choose the Sharing Level to specify who can access the layer:
   • Owner—Only the owner can access the imagery layer.
   • Organization—Members of the portal organization can access the imagery layer.
   • Everyone—Anyone with the URL can access the imagery layer.
8. Optionally, click Show Groups to choose organization groups to share the imagery layer with.
9. Click Next Step.
10. Browse to the image data and metadata files to publish with the layer under Data Source.

    Alternatively, drag the files into the drop zone.

    Remove the files to start over if necessary.

11. Click Next Step.
12. Enter an Image Service Name or use the name already provided.

    The service name can be different than the item name for this layer. Service names cannot contain spaces or invalid characters.

13. For ArcGIS Online environments, choose Dynamic Imagery layer or Tiled Imagery layer for the layer type.
14. When configuring your imagery layers, you can specify the raster type in the Raster Type drop-down that identifies and uses metadata such as georeferencing, acquisition date, sensor type, and band wavelengths. You can create imagery layers using the raster types listed below:
    • Raster Dataset
    • NITF
    • GeoEye 1
    • Worldview 1-3
    • PlanetScope

    For more information on these raster types, see raster file formats.

15. Select a resampling type in the Resampling Type drop-down to specify how pixel values will be interpolated when transforming a raster dataset:
    • Bilinear—Bilinear interpolation is recommended for continuous data, such as elevation.
    • Cubic—Cubic convolution resampling is recommended for continuous data.
    • Majority—Majority resampling is recommended for discrete data.
    • Nearest—Nearest neighbor resampling is recommended for discrete data, such as land cover.

    For more information on these resampling types, see how these are used in raster analysis tools.

16. You can change theSource Type by selecting a method from the drop-down. Source type controls how the data is rendered and represented by default. The following source types are supported :
    • Generic—The data does not have a specified type, and renders with the application defaults for resampling and stretching.
    • Elevation—The data contains elevation data, and renders with bilinear resampling and a min-max stretch.
    • Thematic—The data represents categorical information, and renders with nearest neighbor resampling and a standard deviation stretch.
    • Processed—The data is processed 8-bit imagery. No stretch is applied.
17. If you are publishing an image mosaic or image collection layer, there will be additional Processing Options that can be selected. These options will vary depending on the type of imagery layer being published:
    • Footprints—Build footprints using radiometry. Removes low-quality edge pixels.
    • Pixel Values—Apply a pixel value of 0 to represent NoData.
    • Overview Images—Build overview images to improve display performance.
    • Stretch—Apply default stretch method to each raster item.
18. After you have configured your layer, click Next Step to view a summary of the layer information and configuration before publishing.

    Alternatively, click Back to make changes.

19. Click Publish.

The pane begins uploading the files to the new service layer. Depending on the size of the files and network bandwidth, this process may take some time. A new notification appears on the App Notices dialog box once the imagery layer is published.