Transforming perspective while cropping (Photoshop)

Transforming perspective while cropping (Photoshop)

The crop tool in Photoshop has an additional option that allows you to transform the perspective in an image. This is very useful when working with images that contain

keystone distortion Keystone distortion occurs when an object is photographed from an angle rather than from a straight-on view For example if you take a picture of a a tall building from ground level the edges of the building appear closer at the top than they do at the bottom.

C D

Steps to transform perspective:

A. Draw initial cropping marquee B. Adjust cropping marquee to match the object s edges

C Extend the cropping bounds D Final image

To transform the perspective in an image:

Select the crop tool and set the crop mode (See "Cropping images on section 178

Drag the cropping marquee around an object that was rectangular in the original scene

(although it doesn t appear rectangular in the image). You'll use the edges of this object to define the perspective in the image. The marquee doesn t have to be precise-you'll adjust it later.

Important: You must select an object that was rectangular in the original scene or

Photoshop will not be able to transform the perspective in the image.

Select Perspective in the options bar and set the other options as desired.

(See "Cropping images on section 178

Move the corner handles of the cropping marquee to match the object s edges. This defines the perspective in the image so it is important to precisely match the object s edges.

Drag the side handles to extend the cropping bounds while preserving the perspective. Important Do not move the center point of the cropping marquee Photoshop needs to know the original center point of the image in order to perform perspective correction.

Do one of the following:

Press Enter ( Windows) or Return (Mac OS) click the Commit button in the options bar or double-click inside the cropping marquee.

To cancel the cropping operation press Esc or click the Cancel button in the options bar.

If Photoshop displays an error it is probably due to improper placement of the corner handles or center point Click Cancel to go back and adjust the cropping marquee;

click Don t Crop to cancel the cropping operation An error may also occur if you re working with a previously cropped image.