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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:

Configuring the
• Face
Detection
• detector TV;
• Face detector VA;
Configuring the
• Face
Detection
• detector VL;
Configuring
• Face
Detection
• detector and
Temperature Control
• temperature control;
Masks Detection
• Mask detector TV (detection of a medical or similar mask on the face);
• Mask detector VL;
• Mask detector VA;
Configuring the
• Person-based privacy masking;
Configuring the
• People masking
 
• (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 Roles).

Configuring a privacy mask

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

1. Select the

 Video

2. Camera object and click the Image Modified button.

   Info
   title Note
   The button is inactive

,

3. if the text overlay button is

active

4. active Image Modified (see Putting a text over the Surveillance window).  For your convenience, you can click the Image Modified button and configure the mask on a still frame. To undo, click this button again.

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

. 

6. . The selected area is masked with a mosaic mask.

   Image Modified

   Info
   title Note
   When

the

7. an area is being constructed,

the

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

lin

9. line, which outlines the area's borders.

   Action	Result
   Left or right click in the Surveillance window	Create a new anchor point

in the

10. of an area

    Right-click

on

11. a created anchor point

    Delete

the area

12. 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

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

the

14. an area

15. 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 Removed button.

2. Set the checkbox.
   Image Removed

3. Click the OK button.

You can
16. specify several areas.
17. Click the Apply
 button
18. button to save the changes.

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

Image Modified