The rerendered grey image. This will be null if Grey output was not requested.

The rerendered range image. This will be null if Range output was not requested.

This will always point to all of the rerendered data. So if you requested just Range output, this will point to the RangeImage property. If you request just Grey output, this will point to the GreyImage property. And if you requested both Range and Grey output, this will point to a CogVisionDataContainer object holding both the range and the grey output.