I recall that an article on this topic appeared in the last couple of years in MRR. Does anyone recall the issue? In the article the author tooks photos of buildings and then used Photoshop to get a true 90 degree image of the photo for use on his backdrop. If anyone can point me in the right direction it would be much appreciated. Thanks.
I’ve got CS3. I use both rotation and lens correction to do this:
Image>Rotate Canvas>Arbitrary
and
Filter>Distort>Lens Correction>Transform
Ed
In GIMP, click on the Perspective icon and tug on the corners to get things square. In PhotoShop Elements, it’s under the Transform:Distort. Tug on the corners like in GIMP. Turning on the View:Grid feature will help get things straight. I don’t think that Paint.net has such a transform feature.
You should try to photograph the building as square as possible to minimize the amount of correction you’ll need to do. The pic below was randomly selected from a Google search.
Steve S