Track and Hide a Moving Target
Aktualisiert am 09.09.2026
Draw a rectangle around a walking person’s face and track its movement. Choose the scope of any edge correction, then check individual frames and full playback.
Follow the video walkthrough
Watch the editing workflow and result playback in Studio. The interface is in Korean, with English subtitles included.
Before you start
This demonstration uses 0:00–0:08 of the Pexels video by Mikhail Nilov. Open the original video on Pexels, obtain it from the provider and prepare that 8-second excerpt, or use your own short clip for practice.
walking-track.mp4 is the demonstration clip’s filename. The provider’s full video is longer; timestamps in this guide begin at 0 seconds in the prepared excerpt.
Source footage: Mikhail Nilov / Pexels · License. The demonstration uses a shortened, resized and muted excerpt within actual product operations and added subtitles.
1. Go to the first frame
Open the sample, turn Auto Blur off, and move the playhead to 0 seconds. Locate the face in the first frame.
2. Draw a rectangle around the face
Choose Rectangle under Manual Blur and cover the full face, leaving a margin around the jaw and face edges. Check that Blur is selected in the individual target editor on the right.
3. Track the 0–8 second interval
Select the rectangle, set its active interval to 0–8 seconds, and choose Start tracking. Wait for the calculation to finish.
When Tracking calculated appears, inspect the actual face coverage. The completion notice reports the calculation status. If only part of the interval was calculated or tracking stopped, review and correct that section separately.
4. Inspect the middle and final frames
First move the playhead to 4 seconds and compare the rectangle with the face. After making any needed correction, inspect the final frame too. The counter on this eight-second sample’s final screen reads 00:08.
Also inspect turns and occlusions; the two sampled frames do not replace reviewing the rest of the clip.
5. Correct the rectangle and choose its scope
Select the rectangle at the frame you want to correct and adjust its position or a corner handle. In this example, the lower-right handle is moved slightly outward at 4 seconds to add room around the jaw.
Read the scope notice that appears after the adjustment. Here, it initially says the correction was applied across the surrounding eight-second interval. Choose This frame only to use the current frame as the correction point. Do not assume that every drag affects only the current frame.
After choosing This frame only, check the diamond keyframe at 4 seconds and the calculation status. If Smart interpolation in progress appears, wait for it to finish, then inspect the frames before and after the correction. Using the current frame as a correction point still requires checking the motion between nearby frames.
If another Start tracking click reports that there is no gap to fill, no additional tracking calculation has run. The surrounding interval may already be tracked or the playhead may be at a boundary. Review the current result instead of treating that notice as a newly completed calculation.
6. Review full playback
Play all eight seconds. If an edge of the face becomes exposed, correct that frame and review the surrounding interval again.
7. Export a video file if needed
This demonstration covers the workflow through full playback in the editor. If you need a result file, complete the following saving steps separately.
After reviewing full playback in the editor, open Export at the top. Enter a file name and choose MP4, 720p, and Standard quality. If you need another resolution, select an option available to you in the dialog.
Review any displayed credits or plan conditions and start the export. Wait for a completed status. If an error appears, resolve the stated issue before retrying.
8. Download and check the saved file
When processing completes, use Download for that project. After the browser receives the file, open the saved MP4 in a separate player.
Replay the saved video from beginning to end, checking face coverage at the start, at 4 seconds, at the final frame, and throughout the intervals between them. Inspect the saved MP4 separately from the editor preview. After another edit, export again and check the newly downloaded file.