CLEANUP
Subtitle Removal
Remove or mask hard-coded subtitles using color and edge detection tools.
Detection region + tuning preview
Steps
1
Load the video and choose a detection algorithm.
2
Sample the subtitle color and adjust tolerance.
3
Define the removal region or mask area.
4
Preview the removal region frame-by-frame.
5
Adjust edge feathering and fill parameters.
6
Process the full video.
7
Validate the output and re-run if artifacts persist.
Tips
- ✦Use HSV detection for colored subtitles.
- ✦Edge mode works best for white-on-black captions.
- ✦Use a tight region to limit background damage.
- ✦Test on a short clip before full processing.
Advanced Guidance
Dark Text on Light Background
Enable 'Dark Text' to activate inverted thresholding.
- Threshold: Lower (40-80). Defines 'how black is text'.
- Dilate Size: Larger (7-11). Covers fuzzy edges.
- Inpaint Radius: Unchanged (5-15).
Improving Removal for Light Subtitles
If initial clear is insufficient:
- Increase Dilate: Expand kernel (e.g. 13x13) to cover gray transitions.
- Decrease Threshold: Make detection more sensitive (e.g. 170-160).
- Increase Inpaint: Larger radius (e.g. 20px) for soft transitions.