Optimizing a WBMP Document
The WBMP file format creates images from 2-color pixels, and is used for images that are displayed on small hand-held devices such as PDA's and cell phones. The WBMP format generates an image with 2 colors (black and white) and significantly reduces the images file size. The WBMP format is new to the world of wireless devices, and while it creates small images, the black and white pixels create very low-quality images.

Optimize a WBMP Document
Open a document in ImageReady by first opening the image in Photoshop and then click the Jump To ImageReady button.
Click the Original, Optimized, 2-Up , or 4-Up palettes to view the document using different layouts.
Click one of the sample images to change its default format.
Select the Optimize palette.
Click the Format list arrow, and then click WBMP .
Click the Dither arrow, and then select from the following options:
Method.
Click the list arrow, and then select from the available dithering schemes. Dithering is how the WBMP format mixes the available image colors.
Amount.
Enter or select a value from 0 to 100 to instruct the WBMP compression utility how many of the image colors should be dithered.
Click the File menu, and then click Save Optimized .
[View full size image]