Adobe Photoshop CS2 CLASSROOM IN A BOOK [Electronic resources] نسخه متنی

1.

Examine the status bar at the bottom of the image window and notice the percentage listed on the far left end. This represents the current enlargement view of the image, or zoom level.

A. Zoom level B. Status bar

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NoteIn Windows, the status bar may appear across the bottom of the work area.

2.

Move the pointer over the toolbox and hover it over the magnifying-glass icon until a tooltip appears, identifying the tool by name and providing its keyboard shortcut.

3.

Select the Zoom tool by either clicking the Zoom tool button () in the toolbox or by pressing Z, the keyboard shortcut for the Zoom tool.

4.

Move the pointer over the image window. Notice that it now looks like a tiny magnifying glass with a plus sign (+) in the center of the glass.

5.

Click anywhere in the image window.

The image enlarges to a preset percentage level, which replaces the previous value in the status bar. The location you clicked when you used the Zoom tool becomes the center of the enlarged view. If you click again, the zoom advances to the next preset level, up to a maximum of 1600%.

6.

Hold down the Alt key (Windows) or Option key (Mac OS) so that the Zoom tool pointer appears with a minus sign () in the center of the magnifying glass, and then click anywhere in the image. Then release the Alt or Option key.

Now the view zooms out to a lower preset magnification. Examine the photograph and decide which child you want to spotlight.

NoteThere are other ways to zoom out. For example, you can select the Zoom In () or Zoom Out () mode on the Zoom tool options bar. You can choose View > Zoom In or View > Zoom Out. Or, you can type a lower percentage in the status bar and press Enter (Windows) or Return (Mac OS).

7.

Using the Zoom tool, drag a rectangle to enclose the area of the image that includes the child you want to spotlight.

The image enlarges so that the area you enclosed in your rectangle now fills the entire image window.

You have now tried three ways of using the Zoom tool to change the magnification in the image window: clicking, holding down a keyboard modifier while clicking, and dragging to define a magnification area. Many of the other tools in the toolbox can be used with keyboard combinations. You'll have opportunities to use these techniques in various lessons in this book.

1.

Position the pointer over the tool at the top of the left toolbox column until the tooltip appears, identifying it as the Rectangular Marquee tool () with the keyboard shortcut M. Then select that tool.

2.

Select the Elliptical Marquee tool (), which is hidden behind the Rectangular Marquee tool, using one of the following methods:

Lesson 5, "Working with Selections."

1.

Make sure that the Elliptical Marquee tool () is still selected in the toolbox, and deactivate the current selection by doing one of the following:

In the image window, click anywhere outside the selected area.

Choose Select > Deselect.

Use the keyboard shortcut Ctrl-D (Windows) or Command-D (Mac OS).

2.

Position the pointer in the center of the child's face.

3.

Press Alt-Shift (Windows) or Option-Shift (Mac OS) and drag outward from the center of the face until the circle completely encloses the child's face.

4.

Carefully release first the mouse button and then the keyboard keys.

If you are not satisfied with the selection circle, you can move it: Place the pointer inside the circle and drag, or click outside the selection circle to deselect it and then try again.

NoteIf you accidentally release one or both of the keys prematurely, the tool reverts to its normal behavior (unconstrained and drawing from the edge). If, however, you haven't yet released the mouse button, you can just press the keys down again, and the selection changes back. If you have released the mouse button, simply start again at Step 1.

5.

In the toolbox, double-click the Zoom tool () to return to 100% view. If the entire image doesn't fit in the image window, then click the Fit Screen button on the tool options bar.

Notice that the selection remains active, even after you use the Zoom tool.

1.

Choose Select > Inverse.

Although the animated selection border around the child looks the same, notice that a similar border appears all around the edges of the image. Now the rest of the image is selected and can be edited, while the area within the circle is not selected and cannot be changed while the selection is active.

A. Selected (editable) area B. Unselected (protected) area

2.

Choose Image > Adjustments > Curves.

The keyboard shortcut for this command, Ctrl-M (Windows) or Command-M (Mac OS) appears by the command name on the Adjustments submenu. In the future, you may just press that keyboard combination to open the Curves dialog box.

3.

In the Curves dialog box, make sure that the Preview option is selected. If necessary, drag the dialog box to one side so that you can see most of the image window.

The Preview option shows the effect of your selections in the image window, so the picture changes as you adjust settings. This saves you from having to repeatedly open and close dialog boxes as you experiment with different options.

4.

Drag the control point in the upper right corner of the graph straight down until the value shown in the Output option is approximately 150. (The Input value should remain unchanged.)

As you drag, the highlights are reduced in the selected area of the image.

5.

Examine the results in the image window and then adjust the Output value up or down until you are satisfied with the results.

6.

Click OK to close the Curves dialog box.

7.

Do one of the following:

If you want to save your changes, choose File > Save and then choose File > Close.

If you want to revert to the unaltered version of the file, choose File > Close and click No when you are asked if you want to save your changes.

If you want to do both of the above, choose File > Save As, and then either rename the file or save it to a different folder on your computer, and click OK. Then choose File > Close.

You don't have to deselect, because closing the file cancels the selection.

Congratulations! You've just finished your first Photoshop project. Although the Curves dialog box is actually one of the more sophisticated methods of altering an image, it isn't difficult to use, as you have seen. You will learn more about making adjustments to images in many other lessons in this book. Lessons 3, 4, and 8, in particular, address techniques like those used in classic darkroom work, such as adjusting for exposure, retouching, and correcting colors.

Zooming and scrolling with the Navigator palette

The Navigator palette is another speedy way to make large changes in the zoom level, especially when the exact percentage of magnification is unimportant. It's also a great way to scroll around in an image, because the thumbnail shows you exactly what part of the image appears in the image window.

The slider under the image thumbnail in the Navigator palette enlarges the image when you drag it to the right (toward the large mountain icon) and reduces it when you drag to the left.

The red rectanglar outline represents the area of the image that appears in the image window. When you zoom in far enough that the image window shows only part of the image, you can drag the red outline around the thumbnail area to see other areas of the image.This also is an excellent way to verify which part of an image you're working on when you work at very high zoom levels.