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

For Install images:
-------------------
WDSUTIL [Options]
        /Get-Image
        /Image:
        [/Server:]
        /ImageType:Install
        [/ImageGroup:]
        [/Filename:]

[/ImageGroup:]
        The image group containing the image to return. 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.

EXAMPLES:
---------
To retrieve information about a boot image:
WDSUTIL /Get-Image /Image:"WinPE boot image" /ImageType:Boot
/Architecture:x86

WDSUTIL /Verbose /Get-Image /Image:"WinPE boot image" /Server:MyWDSServer
/ImageType:Boot /Architecture:x86 /Filename:boot.wim

To retrieve information about an install image:
WDSUTIL /Get-Image /Image:"Windows Vista with Office" /ImageType:Install

WDSUTIL /Verbose /Get-Image /Image:"Windows Vista with Office"
/Server:MyWDSServer /ImageType:Install /ImageGroup:ImageGroup1
/Filename:install.wim