How to Spot and Fix Mask Halos in a Manually Restored Photo
By ImgHeal · Updated
Review bright or dark rims around local edits in a separate image editor without blurring away the subject's edges.
Find the adjustment boundary
A pale ring around a head or a dark outline beside a repaired sky may come from a local adjustment mask. In your separate image editor, hide that adjustment and check whether the rim disappears. Compare with the source first, because backlighting and original printing can also produce real bright edges that should not be erased automatically.
Inspect the mask directly
Use the editor's mask display if available and look for a boundary that extends beyond the intended region. Check hair, glasses, and gaps between fingers individually. A broad soft brush may include the background, while a hard selection may leave a visible cutout. The appropriate transition depends on the photographed edge, not a universal feather amount.
Reduce the mismatch before softening
Try lowering the local adjustment strength before adding more blur to the mask. An extreme brightness difference can remain visible even with a soft transition. Refine the boundary on a copy or reversible mask and compare at both close and normal viewing sizes. Avoid softening nearby detail merely to disguise an overstrong correction.
Check the final exported file
Export a working copy and reopen it, because resizing and sharpening can make subtle rims more noticeable. If ImgHeal was part of the workflow, compare its result separately to identify which stage introduced the edge. Keep the editable version so you can revise the mask without painting repeated corrections directly over the only finished file.
Before you save this version
- The rim disappears when the relevant adjustment is hidden.
- Mask strength and edge placement were reviewed separately.
- The final export was inspected at its intended size.
Continue with a related guide
Try a restoration on a copy of your photo
Keep the original scan. Upload a separate digital copy, review ImgHeal’s generated result, and decide whether it suits your needs.
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