Adobe Photoshop CS2 On Demand [Electronic resources] نسخه متنی

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Adobe Photoshop CS2 On Demand [Electronic resources] - نسخه متنی

Andy Anderson; Steve Johnson

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Adding, Subtracting, and Cropping a Selection


To say that Photoshop will help you make selections easy would be an understatement. Not only can you modify selections in any number of ways, Photoshop gives you the option to change your mind by adding and subtracting to an existing selection or even using the selection tools to crop the image. Since most selections are not perfect the first time around, knowing how to modify a selection marquee gives you the control you need to make perfect selections. Adding and subtracting to an image is accomplished by simple keyboard shortcuts, or items on the Options bar. Either way you can create complex selections with ease.

Add to an Existing Selection



Create a selection using any of Photoshop's selection tools.

Add to the selection by holding down the Shift key, and then use a selection tool to add to the existing selection (the selected areas do not need to be contiguous).

Release the mouse and the Shift key to complete the addition.

[View full size image]


Subtract from an Existing Selection



Create a selection using any of Photoshop's selection tools.

Subtract from the selection by holding down the Alt (Win) or Option (Mac) key.

Create a selection that intersects with the existing selection.

Release the mouse and the Shift key to complete the subtraction.

[View full size image]


Crop an Image



Create a selection using any of Photoshop's selection tools.

The selection area does not have to be a rectangle.

Click the

Image menu, and then click

Crop to crop the image.

[View full size image]



Did You Know?


Once a selection is made, it's possible to modify the selection using standard transform tools.
To transform a selection, click the Selection menu, and then click Transform Selection. You will now be able to expand, contract, and even rotate the selection marquee. To exit Transform Selection, simply double-click in the middle of the selection marquee, or press the Enter (Win) or Return (Mac) key.


For Your Information


Cropping an Image to Bring Focus

Cropping a document brings focus to the information contained within the image. For example, if you take a photograph of someone standing in front of a building, is the focus the building or the person? If the focus is the person, then crop out the building. Cropping eliminates distractions, which would otherwise take away from the message of the image. A picture may be worth a thousand words; however, sometimes a picture can say too much.


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