For Install images: - WDSUTIL Options /Export-Image /Image: /Server: /ImageType:Install /ImageGroup: /Filename: /DestinationImage ...

For Install images:
-------------------
WDSUTIL [Options]
        /Export-Image
        /Image:
        [/Server:]
        /ImageType:Install [/ImageGroup:]
        [/Filename:]
        /DestinationImage
          /Filepath:
          [/Name:]
          [/Description:]
        [/Overwrite:{Yes | No | Append}]

[/ImageGroup:]
        The image group containing the image to be exported. If not
        specified and only one image group exists on the server, that
        image group will be used by default. If more than one image
        group exists on the server, then the image group must be
        specified.

[/Filename:]
        If the image cannot be uniquely identified by name, the file
        name must be specified.

/DestinationImage
  /FilePath:
        Specifies the file path and name where the exported image
        should be created.

  [/Name:]
        Sets the display name of the image. If not specified, the
        display name of the source image will be used.

  [/Description:]
        Sets the description of the image.

[/Overwrite:{Yes | No | Append}]
        Determines whether the file as specified in /DestinationImage
        should be overwritten if an existing file with that name
        already exists. No means WDS will error if such a file
        exists. Append means the exported image will be appended to
        the existing WIM.  The default is No.