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General information

A privacy mask is an area that hides certain parts of the frame to ensure privacy. For example, when cameras are installed in an office, you can use a privacy mask to cover employees' computer screens to prevent the leak of logins, passwords and other sensitive information. In critical infrastructure, you can use a privacy mask to hide sensitive elements such as control panels and screens containing critical data.

You can It is possible to apply a privacy mask to the video image to hide certain parts of the frame:

• when viewing live videos;
• when viewing the archive;
• on exported videos and still frames.

The detectors The detection tools that support privacy mask:

• Face detector TV;
Configuring
• Face
detection
• detector VA;
Configuring
• Face
detection (
• detector VL
)
• ;
Configuring
• Face
Detection
• detector and
Temperature Control
• temperature control;
Configuring Masks Detection
• Mask detector TV (detection of a medical or similar mask on the face);
• Mask detector VL;
• Mask detector VA;
• Person-based privacy masking
configuration
• ;
Specific settings for
• People masking
detection tool 
• (based on data from the pose
detection tools
• detector).

Privacy mask will apply to all users who have the View masked video parameter set to No in the role configuration (see Creating and configuring roles).

Configuring a privacy mask

To configure a To configure privacy mask, do the following:

1. Select the

 Video

2. Camera

object

3.  object and click

the Image Removed

4. the Image Added button.

   Info
   title Note
   The button is inactive, if the text overlay button is active Image Modified (see Putting a text over the

camera

5. Surveillance window).

Info

title	Note

 For

6. For your convenience, you can click

the

7. the Image Modified button and configure the mask on a still frame. To undo, click this button again.

8. In the preview window, sequentially set the anchor points of the closed area that you want to hide when viewing the live video image. 

   Image Modified

   Info
   title Note
   When

the

9. an area is being constructed,

the

10. anchor points are connected by a two-color dotted

line

11. lin, which outlines the area's borders.

    Action	Result
    Left or right click in the

video surveillance

12. Surveillance window

    Create a new anchor point

in the

13. of an area

    Right-click

on

14. a created anchor point

    Delete

the area

15. an anchor point of an area
    Point the cursor to an anchor point and holding down the left mouse button, move the mouse	Move

the area

16. an anchor point of an area
    Click the Image Modified button	Delete

the

17. an area

18. You can mask the selected area with black color (by default), or with a mosaic mask. To apply the mosaic mask, do the following:

    1. Click the Image Modified button inside an area.

    2. Set the Mosaic mask checkbox.
       Image Modified

    3. Click the OK button.

19. You can specify several areas.
20. Click the Apply button.

Privacy mask configuration is complete. When you view a video image from this camera, the selected area will be is hidden.

Image Modified