How to delete one line of text that is burnt into a video
Tell Vizard Agent exactly which line or word to delete and what must stay word for word. It covers the old block, rebuilds the remaining lines in a matched font, and then follows the original text through its animation — because burnt-in text that scales or slides will reappear outside any fixed patch.
What is the short version?
Deleting part of a caption is harder than deleting all of it. The lines you keep have to come back looking exactly as they did, in the same typeface, in the same place, while the line you dropped has to leave no trace at any point in its animation.
- Tell Vizard Agent which line goes and which lines stay.
- Name anything near the text that must stay sharp — a logo, a mark.
- Ask it to check the moments when the text moves or scales.
What do you need before you start?
The video and the exact wording you want left on screen. Vizard Agent reads the text off the frame, but confirming the spelling yourself prevents an approximate rebuild, and in a script you do not read that difference is impossible to catch by eye.
- The video. The finished file with the text burnt in.
- What to delete. A line, a duplicated word, a phrase.
- What stays. The remaining lines, spelled as they are.
- What is behind the text. Sky, a building, a logo.
- Whether the text animates. Rises, scales, fades.
What do you type into Vizard Agent?
Be specific about the duplicate. "Delete one of them" is ambiguous when a word appears twice, so say which occurrence — the one in the second line, or the one at the end — and Vizard Agent removes that one rather than choosing for you.
Prompt
Variants worth knowing:
- "The last line completely." Which line, not which words.
- "Delete the second one only." Resolves a duplicate.
- "Keep the logo sharp." What the cover must not reach.
What does Vizard Agent actually do?
Here is the Vizard Agent sequence on a promotional clip with a block of Arabic text rising over a tower shot. The line the client wanted gone turns out to appear in three different sizes as the text animates, and that is what most of the work goes on.
- Samples frames and enlarges the text area to read every word.
- Confirms the exact wording of the lines that stay.
- Builds a test version replacing the block, keeping picture and audio.
- Chooses an Arabic font close to the original rather than a default.
- Tests covering each line separately, to limit how much of the tower is touched.
- Compares a heavy cover, a light blur and no darkening at all, and picks the most natural.
- Renders and checks the waveform to confirm the audio is untouched.
- Finds residue where the text first animates in and extends the cleanup there.
- Runs a motion check on the uploaded copy and returns to the timestamps it flags.
- Finds the original text rising over the logo in the last seconds and narrows a mask around it.
- Locates a small leftover phrase by pixel coordinates and places a cover exactly on it.
- Re-checks the start, middle and end before the final upload.
Step eight is the one that separates a real fix from a demo. A patch placed over the text where you can see it will sit in the wrong place a second earlier, when the same text was smaller and lower — so Vizard Agent treats the animation as a range of positions rather than one rectangle.
Step six is a judgement call made by comparison rather than by preference. A dark box definitely hides the old line, and it also announces that something was covered; the lighter treatment leaves the sky behind the text looking like sky.
Step four matters more than it sounds. Rebuilt text in the wrong typeface reads as a correction to anyone who reads that language, even when every word is right, so Vizard Agent matches the letterforms before it renders anything.
What does the result look like?
The same video with a shorter text block. The lines you kept look as they always did, the deleted line is gone through the whole animation including the moments it scales over the logo, the logo stays sharp, and the audio is the original track.
When does this not work well?
Some text cannot be partially removed. If the line sits over moving detail, or if the block is centred so that deleting a line would shift everything else, Vizard Agent has to rebuild the whole block rather than patch one line — and on a busy background that rebuild is visible.
- Text over moving detail. Water, crowds, traffic.
- Centred blocks. Removing a line moves the rest.
- Heavy compression. The patch edge shows against the blocking.
- Text with a drop shadow. The shadow outlives the letters.
- Semi-transparent text. The background shows through what you are covering.
How do you fix a result that came back wrong?
Give a timestamp with the complaint. Faults in burnt-in text are almost always local to one moment in the animation rather than general to the clip, so Vizard Agent can widen the cleanup at exactly that point without disturbing the stretches that already look right.
- "I can still see it at the start." The cleanup is extended into the animation.
- "There is a dark box." The cover is lightened and narrowed.
- "The logo went soft." The mask is tightened around the text only.
- "The font looks wrong." A closer typeface is chosen and it is re-rendered.
How does Vizard Agent compare to doing it yourself?
By hand you put a blurred rectangle over the line and move on. It works for the ten seconds you were looking at, and then somebody watches the whole thing and sees the line slide out from under the patch as the titles animate in — which is the point at which the job restarts.
| By hand | Vizard Agent | |
|---|---|---|
| The cover | A fixed rectangle | Follows the text through its animation |
| The remaining lines | Left alone, or re-typed | Rebuilt in a matched typeface |
| Background | Blurred flat | Compared across treatments, lightest that works |
| Leftovers | Found by a viewer | Flagged by a motion check, then fixed |
| Audio | Re-encoded with the video | Verified as the original track |
Common questions
Can it delete just one word? Yes. Tell Vizard Agent which occurrence, and the rest of the line is rebuilt around it.
Will the other lines move? Only if the block is centred. Vizard Agent will say so and rebuild the block if needed.
Does it need the original project file? No. Vizard Agent works from the finished video.
What about a language I cannot type? Vizard Agent reads the text from the frame and confirms it with you before rebuilding.
Will the font match? It matches the letterforms as closely as the available fonts allow.
Does the audio change? No. Vizard Agent keeps the original track and checks the waveform after rendering.
What if the text moves? That is the usual case, and it is why Vizard Agent tracks the text rather than patching one frame.
Can it keep a logo in the same area sharp? Yes. Name it, and the mask is narrowed around the text only.
What if the background is a plain sky? Then it is easy — Vizard Agent can rebuild a plain gradient convincingly.
Can I add a new line instead? Yes. Say what it should read and Vizard Agent sets it in the matched font.
How do I check it properly? Watch the seconds where the text arrives and leaves; that is where residue lives.
Does it work on subtitles? Yes, though removing every subtitle is a different and simpler job.
Can it do several videos the same way? Yes. Once the treatment is settled, Vizard Agent applies it across the set.
What if a shadow is left behind? Tell Vizard Agent and the mask is extended to cover the shadow as well.