Setting the optimization for selected slices

Slices use the optimization settings of the entire image until you select them and specify new settings.

1 In the toolbox, select the slice select tool (■ ), and then select the number 02 auto slice in the image.

2 Click the 2-UP tab in the image window to display the original image next to the optimized image.

3 Choose 200% from the Zoom Level menu in the lower left corner of the image window.

Notice that the quality of the optimized image at its default setting (GIF Web Palette) is poor compared to the original image.

4 In the Optimize palette, choose GIF 32 Dithered from the Settings menu.

Now the quality of the selected slice is better than at the default GIF Web Palette setting.

GIF Web Palette setting GIF 32 Dithered setting

5 Examine the optimized image at actual size by choosing 100% from the Zoom Level menu. You can click the Toggle Slices Visibility button () in the toolbox to hide the slice numbers while you're viewing the optimized image.

6 In the image, select another auto slice.

In the Optimize palette, notice that the selected slice has the same GIF 32 Dithered setting. This is because all auto slices are linked together, and any optimization setting that you choose for one auto slice is automatically applied to the others.

7 Choose File > Save.

You'll save the optimized slices later, after you create some rollovers. For information about the optimization settings and available Web formats for your image slices, see Lesson 14, "Optimizing Web Images and Image Maps."

In ImageReady, you can link slices together to share the same optimization settings. Then, in ImageReady or Photoshop, you can change the settings for a linked slice and the new settings are instantly applied to the entire set of linked slices. Linked sets are color-coded to help identify slices in a set.

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