Configuration mode > Administration > Cameras > Reference image comparison
Reference image comparison

The live camera image is compared to a defined reference image of the same camera view (see Manual reference image comparison). An alarm will be triggered if the images do not match and triggers a second alarm when the original camera view is restored.

  1. Select Reference image comparison in the server side operation menu.
  2. To activate the automatic image reference comparison, select Yes from the drop-down-menu.
  3. Click Create reference image to select an image from the camera that serves as a backdrop for the motion detection.
  4. Select Show differences only to show only the differences between the live-image and the reference image.
  5. Adjust the Alert threshold (tolerance) in percent. An alarm will b e triggered only if the differences between the live image and reference image are above the threshold.
  6. Specify the values for the Execution time point by defining the time interval (in minutes, at a certain day time or on certain days per week at a specific time) for the comparison between the reference image and the live image.