Repairing Keystoning Without the Crop Tool |
Keystoning is often found in photos with buildings or tall objects, where the buildings look as if they’re falling away from the viewer (giving the impression that the tops- of these buildings are narrower than their bases). The Crop tool has a Perspective function that can fix these distortions, but actually I’m going to recommend that you don’t use it, because it doesn’t offer a preview of any kind—you’re just guessing, so use this technique instead.
Step One. | Open an image that has a keystoning problem (such as the photo shown here, taken with a wide-angle lens, where the building seems to be leaning ... |
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