# Dewarping Fish-Eye Cameras

Navigation: Working with Nx Witness > Layout Management > Image Display Controls > # Dewarping Fish-Eye Cameras |

If configured, as indicated by the presence of the dewarping icon in layout, a fish-eye camera image can be dewarped and will also have PTZ controls available. See "Configuring Fish-Eye Cameras".

To apply dewarping

1.Click the dewarping icon to activate dewarping and enable the following controls:

2.Click the Change Dewarping Mode button in layout to show the image as a 90, 180, or 360 degree panoramic view, as indicated by the button. Note that 360 degree panoramic mode is not available to cameras that are configured as wall mounted.

3.Use PTZ controls as desired. See "Controlling Pan, Tilt, and Zoom (PTZ)".

4.Click again to hide controls and disable dewarping.

Note that zoom windows created from a fish-eye image are dewarped automatically, but Nx Witness generates s creenshots and export files exactly as the image is displayed. It is possible, however, to apply dewarping to a screenshot after it is captured.

To dewarp a fish-eye screenshot

1.Right-click on the saved image to open the context menu and select File Settings.

2.Click on the Fisheye Dewarping button to enable (green) the distortion correction parameters.

3.Configure dewarping as described in "Configuring Fish-Eye Cameras".