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You can edit the mask of the main motion detector using the function menu of the surveillance window. To edit the mask, go to Processing → Detector mask.
After you enable masking, a black cross appears in the center of the video image. You can move this cross up and down the image using the up and down keys on the keyboard.
Mask is applied as rectangular areas. To apply a mask, use the left mouse button: select a point on the screen, press the left mouse button, and, without releasing the button, draw a rectangle. The resulting mask area will be filled with black dots.
Note
If after applying the mask you press the Enter key on the keyboard, the mode is enabled in which editing and deleting masks is impossible. In this case, the cross in the center of the video turns white. To exit this mode, press the Esc key.
No detection is performed within the masked area.
You can remove the mask in a similar way. To do this, select a point in the surveillance window, right-click, and, without releasing the mouse button, draw a rectangle. The resulting rectangular area will be cleared of the mask, if present.
To exit the editing mode of the main detector mask, go to Processing → Detector mask.
Note
When you exit the mask editing mode, the dotted rectangles of the masked area disappear. However, the masked areas remain functional—no detection is performed within them.