Adobe Dreamweaver CS3 Uživatelský manuál stáhnout pdf (Strana 259)

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DREAMWEAVER CS3

User Guide

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• Select Modify > Image > Brightness/Contrast.

2 Drag the Brightness and Contrast sliders to adjust the settings. Values range from -100 to 100.

3 Click OK.

Sharpen an image

Sharpening increases the contrast of pixels around the edges of objects to increase the image’s definition or

sharpness.

1 Open the page containing the image you want to sharpen, select the image, and do either of the following:

• Click the Sharpen button in the image Property inspector.

• Select Modify > Image > Sharpen.

2 You can specify the degree of sharpening Dreamweaver applies to the image by dragging the slider control, or

entering a value between 0 and 10 in the text box. As you adjust the sharpness of the image using the Sharpness dialog

box, you can preview the change to the image.

3 Click OK when you are satisfied with the image.

4 Save your changes by selecting File > Save, or revert to the original image by selecting Edit > Undo Sharpen.

Note: You can only undo the effect of the Sharpen command (and revert to the original image file) prior to saving the

page containing the image. After you save the page, the changes made to the image are permanently saved.

Create a rollover image

You can insert rollover images in your page. A rollover is an image that, when viewed in a browser, changes when the

pointer moves across it.

You must have two images to create the rollover: a primary image (the image displayed when the page first loads)

and a secondary image (the image that appears when the pointer moves over the primary image). Both images in a

rollovershouldbethesamesize;iftheimagesarenotthesamesize,Dreamweaverresizesthesecondimagetomatch

the properties of the first image.

Rollover images are automatically set to respond to the

onMouseOver event. You can set an image to respond to a

different event (for example, a mouse click) or change a rollover image.

For a tutorial on creating rollovers, see www.adobe.com/go/vid0159.

1 In the Document window, place the insertion point where you want the rollover to appear.

2 Insert the rollover using one of these methods:

• In the Common category of the Insert bar, click the Images button and select the Rollover Image icon. With the

Rollover Image icon displayed in the Insert bar, you can drag the icon to the Document window.

• Select Insert > Image Objects > Rollover Image.

3 Set the options and click OK.

Image Name The name of the rollover image.

Original image The image you want to display when the page loads. Enter the path in the text box, or click Browse

and select the image.

Rollover Image The image you want to display when the pointer rolls over the original image. Enter the path or click

Browse to select the image.

September 4, 2007

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