User's Manual

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ADOBE PHOTOSHOP CS2
User Guide
Matte Specifies a fill color for pixels that were transparent in the original image. Click the Matte color swatch to
select a color in the color picker, or 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).
Pixels that were fully transparent in the original image are filled with the selected color; pixels that were partially
transparent in the original image are blended with the selected color.
Add Metadata (ImageReady) Includes image metadata with the image. Click Settings and then choose an option.
See “Metadata output options” on page 651.
See also
“Using the Save For Web dialog box” on page 625
“To optimize an image for the web” on page 628
Optimization options for PNG-24 format
Transparency and Matte Determine how transparent pixels in the image are optimized:
To save an image with multilevel transparency, select Transparency and select None from the Matte menu.
To make fully transparent pixels transparent and blend partially transparent pixels with a color, select Transparency
a
nd select a matte color.
To fill fully transparent pixels with a color and blend partially transparent pixels with the same color, select a matte
co
lor and deselect Transparency.
To select a matte color, click the Matte color swatch and select a color in the color picker. Alternatively, select an
o
ption from the Matte menu: Eyedropper (to use the color in the eyedropper sample box), White, Black, or Other (to
use the color picker).
Interlace Displays a low-resolution version of the image in a browser while the full image file is downloading. Inter-
lacing can make downloading time seem shorter and can assure viewers that downloading is in progress. However,
interlacing also increases file size.
See also
“Using the Save For Web dialog box” on page 625
“To optimize an image for the web” on page 628
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, rendering the image in purely black and purely 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
applied to the image.
Note: Di
ffusion dither may cause detectable seams to appear across slice boundaries. Linking slices diffuses the dither
pattern across all linked slices, and eliminates the seams.