Source: https://restorebunny.com/guides/preserve-building-lines-in-restoration/

# Check Building Lines After Photo Restoration

Use architectural geometry to spot changed windows, rooflines and invented structural detail.

Restoration techniques2 min readUpdated 16 October 2026

## Try it on your own photo

Repair a copy of your photo, then compare faces and details with the original.

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Quick answer

## The short version

Buildings provide useful reference points when reviewing a restored photograph. Straight edges, repeated windows and clear junctions can reveal geometric changes that are less obvious in textured areas. Compare the result with the source before accepting a cleaner-looking image as faithful.

## Define the job before editing

Buildings provide useful reference points when reviewing a restored photograph. Straight edges, repeated windows and clear junctions can reveal geometric changes that are less obvious in textured areas. Compare the result with the source before accepting a cleaner-looking image as faithful.

## Choose a few fixed anchors

Mark roof corners, window counts, door positions and any sign boundaries in a review copy. Compare those anchors at the same displayed scale and crop. Do not correct a historical building’s irregularity just because an AI model or automatic perspective adjustment makes a more symmetrical result.

## Make the decision from evidence

A local annotation sheet can make feedback precise without modifying the source. Keep uncertain structural details unresolved when the scan cannot support them. A creative architectural artwork is a different deliverable and should be labeled rather than mixed into documentary restoration.

## A worked planning example

Example: A restoration turns five narrow upper windows into four wider ones. The result looks tidy but changes the building. A numbered comparison identifies the altered region and keeps the original as the reference for another attempt.

## A practical checklist

1. Pick stable architectural anchors.
2. Compare counts and junctions.
3. Mark changes on a review copy.
4. Keep creative reconstruction labeled separately.

## Keep a traceable result

Keep the source file, the working copy and the delivery copy as separate items. Record the input and the changes you actually made so another person can understand the result later. These workflow examples are planning examples, not documented customer outcomes or proof of a successful restoration.

## FAQs

Should restoration make a crooked old building perfectly symmetrical?

Only as an explicitly requested interpretation. A faithful viewing copy should not silently redesign the source geometry.

Should I replace my original with the edited copy?

Keep the source unchanged and save a separate working or sharing copy. An export, edit or AI interpretation can omit information that remains useful in the source.

## Sources

Preservation and technical guidance reviewed for this article.

- MDN Web Docs: [Pixel manipulation with Canvas](<https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas>)

## Related

- [Open the related free tool](<https://restorebunny.com/tools/annotate-image/>)
- [Backlit Photo or Faded Print? Choose the Right First Step](<https://restorebunny.com/guides/backlit-source-photo-versus-faded-print/>)
- [Handle Uncertain Printed Signs in Restored Photos](<https://restorebunny.com/guides/printed-signs-and-uncertain-photo-text/>)
- [Browse photo guides](<https://restorebunny.com/guides/>)
- [Free image tools](<https://restorebunny.com/tools/>)

## Ready to restore your photos?

Upload an image, choose your settings, and preview results with a before/after slider.

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