CHANGE YOUR PERSPECTIVE with the Crop tool When
CHANGE YOUR PERSPECTIVE with the Crop tool When you photograph an object from an angle rather than from a straight-on view, the object appears out of perspective, displaying keystone distortion. The top edges of a tall building photographed from ground level appear closer to each other at the top than they do at the bottom. If you photograph a window and cannot get directly in front of it to take the shot, the window appears more like a trapezoid. Depending on the photograph, you can correct this type of distortion with a number of Photoshop s tools. The Crop tool in Photoshop CS3 has a special option that enables you to transform the perspective in an image and quickly adjust the keystone distortion. Your image must have an object that was rectangular in the original scene for the Crop tool s perspective function to work properly. You first adjust the cropping marquee to match the rectangular object s edges and then extend the marquee to fit your image. When you click the Commit button, Photoshop crops the image as large as possible while maintaining the angles of the rectangular object. 22 11 33 66 5544 66 66 66 60 1 In a photo containing a distorted rectangular object, click the Crop tool. 2 Click Clear in the Options bar to remove any previous settings. 3 Click and drag a cropping marquee in the image. The selected area is light, and the area that you want to crop away is dimmed. 4 Click here to deselect Shield to remove the dimming effect. 5 Click here to select Perspective. 6 Click each corner anchor of the cropping marquee and align it with a corner on a normally rectangular object. Note: To zoom in with the crop marquee showing, press +spacebar (Ctrl+spacebar) and click in the image. Press Option+spacebar (Alt+spacebar) and click in the image to zoom out.
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