Adobe 23101335 User Guide - Page 342
Sorting the color table, Adding new colors to the color table
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332 CHAPTER 12 Optimizing Images for the Web Sorting the color table You can sort colors in the color table by hue, luminance, or popularity, making it easier to see an image's color range and locate particular colors. To sort a color table: Choose a sorting order from the Color Table palette menu: • Unsorted. Restores the original sorting order. • Sort By Hue, or by the location of the color on the standard color wheel (expressed as a degree between 0 to 360). Neutral colors are assigned a hue of 0, and located with the reds. • Sort By Luminance, or by the lightness or brightness of a color. • Sort By Popularity, or by the colors' frequency of occurrence in the image. Adding new colors to the color table You can add colors that were left out in building the color table. Adding a color to a dynamic table replaces the color in the palette closest to the new color. Adding a color to a fixed or Custom table adds an additional color to the palette. (See "Generating a color table" on page 330.) To add a new color: 1 Deselect all colors in the color table (see "Selecting colors" on page 333). 2 Choose a color: • Click the color selection box in the Save for Web dialog box (Photoshop) or the toolbox (ImageReady), and choose a color from the color picker. • Select the eyedropper tool ( ) in the Save for Web dialog box (Photoshop) or the toolbox (ImageReady) and click in the image. • (ImageReady) Select the eyedropper tool ( ), click in the image, hold the mouse down, and drag anywhere on the desktop. You can use this option to select a color displayed in another application, such as a color in a Web page displayed in a browser. • (ImageReady) Select a color from the Color palette or the Swatches palette. 3 Do one of the following: • Click the New Color button ( ) in the Color Table panel/palette. • Select New Color from the Color Table palette menu. • (ImageReady) Drag the color from the color selection box, Color palette, or Swatches palette to the Color Table palette. To switch the color table to a Custom palette, hold down Ctrl (Windows) or Command (Mac OS) when you add the new color. The new color appears in the color table with a small white square in the lower right corner, indicating that the color is locked. (See "Locking colors in the color table" on page 335.)