Correcting Perspective Distortion

Architectural photos shot with 35mm Full-frame (or wider) lenses usually produce images of buildings that appear to be tipping due to the low viewpoint. This can make a roof appear much farther away than it actually is compared to other floors of the same building. If the same photo is also not shot straight-on, we have to deal with two simultaneous types of perspective distortion: horizontal and vertical distortion. Photoshop offers various ways to correct these errors:

  1. Transform command This command is quick and easy to use, and it includes various sub-commands, such as Scale, Rotate, and Skew (Figure 8-21). We generally use the Free Transform command that is controled using various keystrokes and that produces ...

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