How to cover a number plate with your own text that tracks the car
Tell Vizard Agent what the plate should read instead and that nothing else in the frame gets touched. It measures where the plate sits in every frame as the car moves away, then composites the word at exactly that size and position, so it reads as part of the car rather than a patch over it.
What do you type into Vizard Agent?
Say "nothing else" and mean it literally. Requests to cover a plate are routinely answered with a general privacy pass that softens faces, other cars and half the street, and the clip comes back looking censored rather than clean. Then say what the plate should read and that it moves with the car.
Prompt
What does Vizard Agent actually do?
Almost all of the work is measurement rather than rendering, because the plate gets smaller and fainter in each frame as the car drives away into the haze. Vizard Agent checks every automatic box against the picture and projects the far positions it can't measure. In the session behind this article it:
- Sampled frames to locate the plate, took close views at several times and opened full-resolution frames with the plate centred to fix its exact geometry.
- Used the plate's own colour to compute its bounding box automatically, then checked the boxes by eye so the mask hugged the plate and not the road behind it.
- Estimated the farther positions from the reliable early frames, and built a coordinate-marked review of the hazy middle section to finalise the path.
- Zoomed into the moment the plate became partly obscured and followed it through the lane shift to the last clearly visible frames.
- Rendered with the audio preserved, found the word sitting in the corner because a character in the tracking expression was read as a separator, escaped it and re-rendered.
- Re-checked the early, middle and distant positions on the finished file.
When does this not work well?
Some shots will not take a fitted replacement. A plate at a sharp angle, one mostly hidden behind a tow bar or a bike rack, or footage so compressed that the plate is a grey blur gives nothing to measure, and a small blur is the honest answer there. Fast cuts and several cars each need their own tracking.
Common questions
Can it just blur the plate instead? Yes, if you prefer. Vizard Agent will, though a fitted word looks less hidden.
Can it do several cars? Yes. Vizard Agent treats each plate as its own tracked object.
How small can the plate get? Down to a few pixels. Beyond that, Vizard Agent projects the position.