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DW Spectrum - Fisheye Functionality

Updated

Fisheye Functionality with DW Spectrum Professional

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Affected Roles: Power User, Power Users

Related DW Software: DW Spectrum Professional

Last Edit: April 17, 2026

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Fisheye Dewarping

Fisheye cameras are practical when users want to survey a wide area using a single-lens camera. However, monitoring the camera stream can be disorienting as the camera video will appear warped when initially viewing the camera.

DW Spectrum Professional allows users to utilize its Fisheye Dewarping feature to convert the image from a warped, fisheye view into a panoramic view for both RTSP and ONVIF connected cameras, providing the user with a more comfortable way to monitor the camera.

This article will outline how to use the Fisheye Dewarping feature in DW Spectrum Client.

 

Supported/Affected Devices

  • DW Blackjack Series
  • DW MEGApix Cameras
    • DWC-PVF5Di1TW
    • DWC-PVF9Di2TW
    • DWC-XFFA12Ai

 

Related Articles

 

Using Fisheye Dewarping

Part 1: Enable Dewarping Feature

When a fisheye camera is first added to the DW Spectrum Server, the Fisheye Dewarping tool may be unavailable in the camera’s miniature toolbar.

To enable the Dewarping feature for fisheye cameras:

  1. Right-click on the fisheye camera and select “Camera Settings”.

 

  1. Select the “Dewarping” tab and enable the Dewarping toggle.

 

  1. A highlighted circle will overlay the camera’s fisheye display. In this menu, you can configure the following settings:
  • Calibration – use the drop-down to select between using “Fisheye” or “360° Equirectangular” options for the dewarp feature’s shaping and positioning.
  • Auto Calibration – click this button to automatically size the highlighted area to the camera fisheye lens.
  • Mount – specify the installed positioning of the camera; mounted either on the ceiling or on the wall.
  • Angle – if the camera is not mounted in an exact vertical or horizontal position, you can adjust the mounting angle by -30.0° ~ +30.0° degrees to fix the distortion.
  • Lens Projection – improve fisheye dewarping precision by selecting the most suitable lens projection type.

 

  1. If needed, you can manually adjust the distortion settings:
  • Size – use the slider to change the size of the orange circle.
  • X Offset – use the slider to change the horizontal position of the circle.
  • Y Offset – use the slider to change the vertical position of the circle.
  • Ellipticity – use the slider to adjust the shape of the circle.

Click the Apply button to save the settings, then click the OK button to close the Camera Settings menu.

 

Part 2: Viewing a Dewarped Camera

  1. The camera’s Fisheye Dewarping tool will now be displayed in the camera’s miniature toolbar.
    Click the Fisheye Dewarping tool icon to convert the camera view into a panoramic picture.

 

  1. The fisheye camera will now display in either a 90-degree, 180-degree, or 360-degree, dewarped view.
    Click the Orange Dewarping Mode button to switch between panoramic views.

 

  1. Use the PTZ-style controls or click-and-drag to maneuver the camera view and digitally zoom the camera.

 

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