Graphics Programs Reference
In-Depth Information
TIP
Each of the adjustment sliders is accompanied by a box where you can type a number
instead of moving the slider. If you want to make the same adjustments to several
photos, take note of the numbers you used to fix the first photo, and then plug those
numbers into the boxes for the other photos.
Perspective Control . Use these sliders to correct objects like buildings that appear to be
tilting or leaning forward or backward. It's easiest to understand these sliders by looking
at the icons at their ends, which show the effect you'll get by moving the slider in that
direction. The Vertical Perspective slider spreads the top of your photo wider if you
move the slider left and makes the bottom wider if you move it right. (If buildings seem
like they're leaning backward, move this slider left.) The Horizontal Perspective slider is
for when your subject doesn't seem to be straight on in relation to the lens (for example,
if it appears rotated a few degrees right or left). Move the slider left to bring the left side
of the photo toward you, or right to bring the right side closer.
You can rotate the entire photo by moving the line in the Angle circle to the position you
want, or by typing a number in the text box next to it. A small change here has a huge ef-
fect. Here's how it works: There are 360 degrees in a circle, and your photo's starting
point is 0.00 degrees. To rotate the photo counterclockwise, start from 0.01 and then go
up in small increments to increase the rotation. To go clockwise, start with 359.99 and
then reduce that number.
Edge Extension . As explained in step 4 above, when you're done fixing a photo with the
Correct Camera Distortion filter, you're likely to end up with some blank areas along the
edge of the canvas. Move the Scale slider right to enlarge your photo and get rid of those
blank areas. (Moving the slider left shrinks your photo and enlarges the blank areas, but
you'll rarely want to do that.)
One important thing to keep in mind: Unlike the Zoom tool, the Scale slider changes the
actual photo, not just your view of it: After you use this slider and then click the Correct
Camera Distortion dialog box's OK, Elements resizes and crops your photo. So if you
want the objects in your photo to stay the same size, don't use this slider. Instead, just
click OK, and then crop using any of the methods discussed in Chapter 3 .
The most important thing to remember when using Correct Camera Distortion is that a little
goes a long way. For most photos, the best method is to start small and work in tiny incre-
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