Video Inpainting Mask Feathering: A Practical Edge Guide
Start with the cleanest source
Start from the highest-quality source and identify the true footprint, including glow, outline, drop shadow, and compression fringe. Adobe documents Alpha Expansion as a way to include pixels outside an object, but the correct margin depends on the shot rather than one fixed number.
Keep an untouched master before making any change. A project re-export, original camera file, removable subtitle track, or clean licensed asset preserves real pixels; inpainting only estimates pixels that are no longer available in a flattened frame. Document why you are allowed to edit the material and do not remove attribution or disclosure that must remain.
Plan a precise repair
Compare a tight mask, a slightly expanded mask, and separate masks for materially different time ranges. Judge each on motion boundaries and textured edges. Do not use one large rectangle merely because the object changes position after a cut.
Scrub the complete clip, not just the first frame. Record when the visible element appears, moves, fades, or crosses a cut. Select the smallest region that fully contains its edge, shadow, and antialiasing. Split the work into separate time ranges when position or size changes; a permanently oversized region asks the model to invent unnecessary detail.
Review the difficult frames
Look for four failures: a surviving halo, a soft seam, texture that sticks to the boundary, and unrelated detail disappearing just outside the target. Review both normal playback and stopped frames because temporal shimmer and single-frame edge errors reveal different problems.
Record which ranges and boundaries passed review so later revisions can reproduce the decision instead of expanding the mask blindly. Wipe AI accepts MP4, MOV, WebM, AVI, and MKV inputs and returns an H.264 MP4 up to 1080p. It processes one video at a time, and the result depends on the selected area, motion, compression, and background complexity. Watch the result at normal speed and frame by frame around cuts, foreground crossings, fast motion, and texture changes. Reject a repair that invents meaningful evidence, alters faces or captions that should remain, or creates a misleading impression of the source.
Recommended workflow
- Confirm ownership or permission and preserve the untouched source.
- Use the project, source file, or removable track first when it is available.
- Mark only the complete visible element and separate changing time ranges.
- Preview the hardest motion, cut, texture, and edge before processing the full clip.
- Verify framing, duration, audio sync, and repaired boundaries before delivery.
Sources and further reading
Document the finished edit
Keep the untouched source, decision notes, and approved export together. Record why the edit was authorized, which time ranges changed, and which source-first options were checked. The intended task for this page is: Informational guide: choose mask margins and evaluate boundary artefacts in authorized video inpainting.
Before delivery, verify duration, aspect ratio, audio sync, and every repaired boundary in the real viewing environment. Wipe AI accepts MP4, MOV, WebM, AVI, and MKV, then exports H.264 MP4 up to 1080p. It processes one video at a time; results depend on overlay size, motion, and background complexity, and output may be re-encoded.
Frequently asked questions
What is the safest way to handle video inpainting mask feathering?
Cover the complete visible edge and test a small margin. More feathering is not automatically better because it can modify valid neighboring pixels.
Does Wipe AI recover the original hidden pixels?
No. It creates a plausible reconstruction from visible spatial and temporal context; it cannot reveal the exact covered image.
What output should I expect?
The current product output is H.264 MP4 up to 1080p, and processing can involve re-encoding.
Does cleanup change copyright or platform rules?
No. Ownership, licensing, attribution, disclosure, privacy, and platform obligations still apply.