1
00:00:00,300 --> 00:00:08,000
Identify the foreground pedestrian and the bus’s front plate in the
10-second clip.

2
00:00:08,000 --> 00:00:11,000
Turn Auto Blur on and select Human face.

3
00:00:11,000 --> 00:00:17,100
Move to about 4 seconds and compare the blurred face with the visible plate.

4
00:00:17,100 --> 00:00:21,000
Enable License plate to blur the bus’s front plate too.

5
00:00:21,000 --> 00:00:28,000
Click the detected plate to switch it to Original.

6
00:00:28,000 --> 00:00:30,500
Choose Blur on the right to hide it again.

7
00:00:30,500 --> 00:00:34,000
Now inspect the closer face at about 8.8 seconds.

8
00:00:34,000 --> 00:00:41,000
You can also click this face to keep just this face unblurred.

9
00:00:41,000 --> 00:00:45,500
For this example, restore Blur in the right-hand individual controls.

10
00:00:45,500 --> 00:00:51,000
Back at 0 seconds, the opening part has no automatic face blur.

11
00:00:51,000 --> 00:00:56,500
Use Manual Blur’s Rectangle to cover the missed face with some margin.

12
00:00:56,500 --> 00:01:01,300
Check that the rectangle’s individual effect is Blur.

13
00:01:01,300 --> 00:01:05,000
Drag the right end of the purple range to 1 second.

14
00:01:05,000 --> 00:01:09,700
Click Start tracking to follow the face within this 0–1-second range.

15
00:01:09,700 --> 00:01:15,000
When calculation finishes, check the mask at the end of the range.

16
00:01:15,000 --> 00:01:18,000
Clear the selection to review the effect without adjustment handles.

17
00:01:18,000 --> 00:01:25,000
Add coverage where the plate blur drifts as the bus leaves the frame.

18
00:01:25,000 --> 00:01:34,000
At 4 seconds, draw a broad rectangle over the plate’s lower-right exit path.

19
00:01:34,000 --> 00:01:40,000
Keep the new rectangle set to Blur and check that it covers the plate’s
path.

20
00:01:40,000 --> 00:01:46,000
Set the rectangle’s active range to 4.0–4.6 seconds in the timeline.

21
00:01:46,000 --> 00:01:53,000
This region stays fixed for 0.6 seconds; it is not tracked.

22
00:01:53,000 --> 00:02:05,300
At 4.2 seconds, check that the complete plate is inside the extra region.

23
00:02:05,300 --> 00:02:16,400
At 4.44 seconds, check the last visible part of the plate.

24
00:02:16,400 --> 00:02:21,000
At 4.64 seconds, the extra region is off and the plate is already outside
the frame.

25
00:02:21,000 --> 00:02:28,000
Clear the selection and check that the actual picture returns to its first
frame.

26
00:02:28,000 --> 00:02:34,000
If only the timer changes, seek elsewhere, return to 0, and check the
picture again.

27
00:02:34,000 --> 00:02:39,250
Review the opening face coverage and the plate’s exit during full playback.

28
00:02:39,250 --> 00:02:49,700
Play all 10 seconds, checking the face at 0–1 seconds and the plate
at4.0–4.6 seconds.

29
00:02:49,700 --> 00:02:55,000
Check the foreground face, front plate, and the boundaries of their
coverage.

30
00:02:55,000 --> 00:03:00,000
Inspect window reflections and small background subjects separately.

31
00:03:00,000 --> 00:03:05,500
Source: Traffic on Slovenska street · Sounds of Changes · CC BY 3.0