"Squaring Up" An image?

MH
Posted By
Mark Haase
Feb 20, 2004
Views
1731
Replies
2
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Closed
Hey All–

I have photos of rectangular objects which are, due to the perspective of the camera, slightly not rectangular in the actual photos. What I’m looking for is an easy way to "square up" these photos, so that the object of interest looks rectangular: ie. 2 sets of parallel sides, 1 set parallel to the horizon, 2 sides perpendicular.

I figure there must be some trick or tool that does this real quickly, right? Or should I just use "Free Transform" and fiddle till it looks right?

thanks

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mehaase(at)sas(dot)upenn(dot)edu
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J
jenelisepasceci
Feb 20, 2004
Mark Haase wrote:

Hey All–

I have photos of rectangular objects which are, due to the perspective of the camera, slightly not rectangular in the actual photos. What I’m looking for is an easy way to "square up" these photos, so that the object of interest looks rectangular: ie. 2 sets of parallel sides, 1 set parallel to the horizon, 2 sides perpendicular.

I figure there must be some trick or tool that does this real quickly, right? Or should I just use "Free Transform" and fiddle till it looks right?
Set four guidelines first as an optical reference, thereafter select the whole image and use "transform – perspective". That should do the trick.
HTH, Peter
SM
Steve Moody
Feb 20, 2004
In article , Mark
Haase wrote:

I have photos of rectangular objects which are, due to the perspective of the camera, slightly not rectangular in the actual photos. What I’m looking for is an easy way to "square up" these photos, so that the object of interest looks rectangular: ie. 2 sets of parallel sides, 1 set parallel to the horizon, 2 sides perpendicular.

I figure there must be some trick or tool that does this real quickly, right? Or should I just use "Free Transform" and fiddle till it looks right?

Use the crop tool. Click the box to select the Perspective option. Line up the four edges of the crop with the four edges of the object, then pull the center nods out. Press enter. The Photoshop manual explains it much better, and the crop tool takes up only a couple pages. Check it out.

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