User Guide

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ADOBE GOLIVE CS2

User Guide

Optimization options for PNG-24 format

Transparency and Matte Determines how transparent pixels in the image are optimized:

• To save an image with multilevel transparency, select Transparency.

• To fill fully transparent pixels with a color and blend partially transparent pixels with the same color, deselect

Transparency and select a matte color.

• To select a matte color, click the Matte color swatch and select a color in the color picker. Alternatively, select an

option from the Matte menu: Eyedropper (to use the color in the eyedropper sample box), White, Black, or Other

(to use the Color Picker).

Interlace Creates an image that displays as a low-resolution version in a browser while the full image file is

downloading. Interlacing can make downloading time seem shorter and can assure viewers that downloading is in

progress. However, interlacing also increases file size.

See also

“To optimize and save web graphics” on page 365

“Comparing web graphics formats” on page 369

Optimization options for WBMP format

The Dithering Method and Dither options determine the method and amount of application dithering. For optimal

compression, use the lowest percentage of dither that provides the detail you require.

You can select one of the following dithering methods:

No Dither Applies no dithering at all and gives straight black and white pixels.

Diffusion Appliesarandom patternthatisusually less noticeable than Patterndither. Thedithereffects arediffused

across adjacent pixels. If you select this algorithm, specify a Dither percentage to control the amount of dithering that

is applied to the image.

Note: Diffusion dither may cause detectable seams to appear across slice boundaries. Linking slices diffuses the dither

pattern across all linked slices, and eliminates the seams.

Pattern Applies a halftone-like square pattern to determine the value of pixels.

Noise Applies a random pattern similar to the Diffusion dithering, but without diffusing the pattern across adjacent

pixels. No seams appear with the Noise algorithm.