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<ul class="navigation"><li class="prev"><a accesskey="p" class="prev" href="WSfd1234e1c4b69f30ea53e41001031ab64-7636a.html" title="Crop images"><img src="images/blank.gif" alt="Previous" width="17" height="17" /></a></li><li class="next"><a accesskey="n" class="next" href="WSfd1234e1c4b69f30ea53e41001031ab64-762ea.html" title="Crop and Straighten photos"><img src="images/blank.gif" alt="Next" width="17" height="17" /></a></li></ul><div class="hierarchy" id="hierarchy"><a href="WSfd1234e1c4b69f30ea53e41001031ab64-763ea.html">Retouching and transforming</a> /
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                <h1>
                    Transform perspective while cropping
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                <div><div class="section"><p>The Crop tool has an option
that lets you transform the perspective in an image. This is very
useful when working with images that contain <dfn class="term">keystone distortion</dfn>. 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
tall building from ground level, the edges of the building appear
closer to each other at the top than they do at the bottom. </p>
<div class="fignone"><img alt="" id="tr_04" src="images/tr_04.png" /><div class="figdesc">Steps to transform perspective</div><br /><dl><dt class="dlterm">A.</dt>
<dd>Draw initial cropping marquee</dd><p class="dlseparator"></p><dt class="dlterm">B.</dt>
<dd>Adjust
cropping marquee to match the object’s edges</dd><p class="dlseparator"></p><dt class="dlterm">C.</dt>
<dd>Extend
the cropping bounds</dd><p class="dlseparator"></p><dt class="dlterm">D.</dt>
<dd>Final
image</dd><p class="dlseparator"></p></dl>
</div></div>
<ol><li class="stepexpand"><span>Select the Crop tool&#160;<img src="images/P_Crop_Lg_N.png" /> and
set the crop mode.</span></li>
<li class="stepexpand"><span>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.</span> <div class="important"><span class="importanttitle">Important:  </span>You must select an object that was
rectangular in the original scene or Photoshop might not produce
the perspective transformation you expected. </div>
</li>
<li class="stepexpand"><span>Select Perspective in the options bar, and set the other
options as desired.</span></li>
<li class="stepexpand"><span>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. </span></li>
<li class="stepexpand"><span>Drag the side handles to extend the cropping bounds while
preserving the perspective. </span> <p>Do not move the center point of the cropping marquee. The
center point needs to be in its original position in order to perform
perspective correction. </p>
</li>
<li class="stepexpand"><span>Do one of the following:</span><ul><li><p>Press Enter (Windows) or&#160;Return
(Mac&#160;OS), click the Commit button&#160;<img src="images/P_Accept_Md_N.png" /> in
the options bar, or double-click inside the cropping marquee.</p>
</li>
<li><p>To cancel the cropping operation, press Esc or click
the Cancel button&#160;<img src="images/P_Cancel_Md_N.png" /> in the
options bar.</p>
</li>
</ul>
</li>
</ol>
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