Yes, you can control and see de-warped images on the new version of the ND Viewer. You can download the new ND viewer from WJ-NV300(Ver1.21 or later) or WV-ASM200(Ver3.3 or later).
If you only have older version of ND_Viewer, you can download the software library for the de-warping function and apply it.
Refer to the following URL.
http://security.panasonic.com/pss/cgi-bin/security/ipro/download/tbookmarka_m.cgi?m=%20&mm=2013091113242584