You can apply a saved palette to your color image (or paletted grayscale image) using the Import command.
The Import Palette dialog box allows you to navigate to any palette file (*.pf) and displays a preview of the palette, as well as a title.
The Import Palette dialog box gives you three options for applying the imported palette to your image:
- Substitute simply replaces the current palette with the imported palette. Indexed colors are not changed, they are mapped to the new colors in the imported palette.
- Match replaces the current palette with the imported palette by remapping the indexed colors to the closest colors in the imported palette. Matching is especially useful for synthetic images with areas of nearly-uniform color. A scanned USGS map, for instance, can be matched to an imported web-safe palette.
- Dither is similar to Match because the current indexed colors are usually re-mapped to the closest colors in the imported palette. Unlike matching, however, dithering attempts to reduce color banding by using groups of pixels displaying the target colors. The combination of these colors is perceived as a single color. Because dithering sacrifices spatial resolution in order to match the appearance of the original color, the dither option is best suited for continuous tone images such as photographs.
Note: Unlike many other actions in the Palette Manager, importing a palette effects the image without clicking the Apply button. To restore the image palette, you should exit the Palette Manager and use the AutoCAD UNDO command.