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Manipulating Images 59<br />
Moving and resizing the grid allows the main subject of your photo (in this case a<br />
big wheel) to be offset and balanced against a foreground or background feature<br />
within the photo (e.g., the sky as background). Position a main item of interest in<br />
the photo where any two lines intersect within the crop grid (four intersections are<br />
possible). This is known as the "rule or thirds" which will help you find the most<br />
balanced composition where your eyes are drawn to the main subject. Double-click<br />
to crop the photo to the outer grid dimensions.<br />
You can also crop an image to any selection region, no matter what shape, as<br />
defined with one of the selection tools. For example, here’s cropping applied to a<br />
selection created with the Magnetic Selection Tool:<br />
Before After<br />
(Crop to Selection)<br />
To crop the image to the selection:<br />
• Choose Crop to Selection from the Image menu.<br />
If the selection region is non-rectangular, the left-over surrounding region will be<br />
either transparent (on a standard layer) or the current background colour (e.g.,<br />
white).<br />
Cropping to the selection affects all image layers. Everything outside the<br />
selected region is eliminated.