How to correct a product shot that shows more than the customer gets

Last updated 2026-09-17 · 8 min read

What is the short version?

The video was made before the recipe settled, and now the topping in the close-up is twice what goes on the dessert. Reshooting a food video for one biscuit is not proportionate, and leaving it is a promise you cannot keep.

1. Tell Vizard Agent which item is wrong and what it should be.
2. Let it find every shot the item appears in.
3. Expect the correction to be tracked, because the camera moves.

What do you need before you start?

The finished video and a clear statement of the correct version. Vizard Agent can make a whole biscuit into half a biscuit, two scoops into one, or a garnish smaller — but it needs the target described in the same terms a kitchen would use.

• The finished video. The cut you are running.
• The item. Which one, on which product.
• What it should be. Half, one, fewer, smaller.
• Which shots. All of them, or the close-up only.
• What must not change. The dish, the styling, the audio.

What do you type into Vizard Agent?

Describe the correction, not the technique. You do not need to ask for a mask or an overlay; you need to say that the biscuit on top should be half a biscuit and that everything around it stays exactly as filmed.

Prompt

Variants worth knowing:

• "Half a biscuit instead." The target, in plain terms.
• "The camera pushes in." Warns that a static patch will fail.
• "The rest of the topping stays." What the edit must not disturb.

What does Vizard Agent actually do?

Here is the Vizard Agent sequence on a dessert video whose close-up showed a whole biscuit where the kitchen serves half of one. The job turns out to be a single image edit followed by a great deal of tracking, and the tracking is where every attempt at this goes wrong.

1. Samples frames and looks closely at the end of the video, where the topping appears.
2. Maps the whole timeline so every appearance of the item is accounted for.
3. Measures how much the biscuit shifts across the close-up before building anything.
4. Crops the clearest frame around the biscuit and a little of the topping.
5. Edits that crop into a half biscuit, keeping the surrounding topping and the lighting.
6. Finds the crop no longer matches once the camera has moved closer.
7. Re-crops from a mid-shot frame where the camera position is representative.
8. Takes keyframes across the shot to calculate the size and position changes.
9. Fixes the start position, the end position and the point before the fade.
10. Renders with a soft mask following that path.
11. Finds the new biscuit not fully covering the old one and corrects the trajectory.
12. Matches the final duration exactly to the original and re-checks the audio.

Step seven is the step people skip. The clearest frame of an object is usually the one where the camera is closest, and an edit built from that frame is the wrong size and the wrong angle for the rest of the shot. Vizard Agent goes back for a representative frame instead.

Step eleven is the failure this job always has. If the replacement is even slightly off the original's path, the old edge shows for a few frames and you get two biscuits — which is worse than the problem you started with.

Step twelve matters commercially. A corrected ad has to be the same length as the one that was approved, and Vizard Agent matches the duration rather than delivering something a second short.

What does the result look like?

The same video, with the topping as it is actually served. The dessert, the styling, the lighting and the camera move are untouched, the audio and the runtime are identical to the original, and the correction holds through the push-in to the closing fade.

When does this not work well?

Some corrections change the whole shot. If the item is handled, poured, cut or eaten on camera, the change has to be consistent through every one of those actions, and a single tracked overlay cannot do that — it becomes a reshoot of that shot.

• Items being handled. Hands, spoons, pouring.
• Items that change through the shot. Melting, sinking, being cut.
• Very shallow focus. The edit's sharpness will not match.
• Items across several shots at once. Each one needs its own pass.
• Reflective surfaces. The original shows in the glaze.

How do you fix a result that came back wrong?

Say what you can see and at which moment you can see it. Vizard Agent adjusts the path or the mask rather than redoing the image edit, because the edited item itself is usually right and it is the tracking through the camera move that slips.

• "I can see the old one behind it." The overlay path is corrected.
• "It looks pasted on." The mask is softened and the edges feathered.
• "It drifts as the camera moves." More keyframes are taken across the move.
• "The size is wrong at the end." The scale is re-measured before the fade.

How does Vizard Agent compare to doing it yourself?

By hand there are two honest options: reshoot the dessert, or open the shot in a compositing tool and track an edited still through it. The first costs a day and a kitchen; the second costs an afternoon and the skills of somebody who does this professionally.

Common questions

Can it change a quantity, not just an item? Yes. Fewer pieces, a smaller portion or a different garnish are the same kind of edit.

Will it match the lighting? Vizard Agent builds it from your own frame, so the lighting is already yours.

What if the item appears in several shots? Vizard Agent maps every appearance and treats each shot separately.

Does the audio change? No. Vizard Agent keeps the original track and confirms it after rendering.

Will the video be the same length? Yes. The duration is matched to the original exactly.

Can it make the portion bigger instead? Yes, though showing more than you serve is the problem this fixes.

What if the camera does not move? Then it is much simpler, and Vizard Agent needs one position and one mask.

Does it need the project file? No. Vizard Agent works from the finished video.

How do I check it? Watch the shot at full size, especially the last second before any transition Vizard Agent kept.

Can it do the same for a label? Yes, though a label change is usually a different and better-supported job.

What about the packaging in the background? Name it and Vizard Agent will treat it, or leave it alone.

Will anyone be able to tell? Not if the tracking holds. That is what the coverage check is for.

Can it do this on a series of ads? Yes. Once the corrected item exists, Vizard Agent reuses it across the set.

Is a reshoot ever the right answer? Yes — when the item is handled or changes on camera, Vizard Agent will say so.