How to turn a person in your video into a white silhouette
Tell Vizard Agent which person becomes the silhouette and what stays as it is. It isolates that subject from the background, checks the mask holds through the movement in the clip, and fills the shape. The difficulty is not the fill, it is the edge staying steady while somebody runs.
What do you type into Vizard Agent?
Say what is not changing as well as what is. A request to make a silhouette can easily be read as a full stylisation of the whole shot, when what you almost always want from Vizard Agent is one figure filled in flat against footage that is otherwise completely untouched.
Prompt
What does Vizard Agent actually do?
Isolating the player takes Vizard Agent a single step. Everything after it is about whether that shape survives the movement without breaking up at the edges, because masks decay: a shape that is perfect for three seconds can lose an arm when the player turns. So the last frame gets checked as deliberately as the first. In the session behind this article it:
- Sampled frames, isolated the player from the background and inspected the edge quality before compositing anything.
- Checked the player's position at several points in the clip and measured the foreground area, so the mask followed the main player and not everyone.
- Built the white silhouette and composited it over the original video.
- Pulled QC frames and a waveform, found the audio missing, and re-rendered with the original sound carried through.
- Confirmed the silhouette held to the last frame, ran a motion and sync check, then repeated on a second clip, fixing the duration to match the source exactly.
When does this not work well?
Some clips won't isolate cleanly. A subject the same tone as what's behind them, motion blur on fast limbs, or a crowd where people overlap produces an edge that wobbles, and a wobbling silhouette is more distracting than no effect at all. Hair and loose clothing break up first, and very low resolution leaves no edge to find.
Common questions
Can the silhouette be a different colour? Yes. Tell Vizard Agent white, black or a brand colour.
Is this good enough for anonymity? It looks more deliberate than a blur, but the shape still shows build and gait.
Will the audio change? No. Vizard Agent keeps the original track and verifies it after rendering.