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AP - Perspective correction


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I am familiar(ish) with both the live and normal perspective corrections tools, but don't know how to get the best result from the adjustment.

When I drag outward left or right on the top handles to correct converging line distortion, the height of objects (buildings and people) become foreshortened so I drag the handles upwards to restore what looks like a proper ratio, but is there a way to get a "correct" ratio other than by eye/guessing? I find this particularly difficult when dealing with photos with people in the foreground.

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I generally do a bit of ground work first in so much as, I create lines with the pen tool to give a point of reference for height and width.

Before perspective
image.thumb.png.343f016801598105be569c381224bed0.png

After perspective but prior to scaling the photographer back to match the green lines
image.thumb.png.bdc8547996862161b85db9000f8ead37.png

After perspective, using the green lines to scale the photographer back.
image.thumb.png.324f558e583bacdb255cd6cd3164ec91.png

 

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I guess you just have to stretch the image vertically (and horizontally a bit) in order to have people height (and width) match the green lines.

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  • 2 weeks later...

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