Autodesk 00126-050008-1640A User Guide - Page 70

WiseImage - User's Guide - or Start the operation without choosing an image. Select an image you want to process from the dialog box. * For more detailed information on the selection procedure see "Selecting Several Images" on page 20. Converting to 8-bit indexed This command supplies the user with a way of reducing the file size of an image by changing its color depth (number of bits that store color information) form 24 bit per pixel to 8 bit per pixel. This is also a way to tune colors precisely. When you apply this command to a RGB color image, the number of colors used reduces to 256 (or less). You can further reduce this number by deleting selected color or colors or by merging several colors in one. You can also replace selected colors and add them to palette. Note that color filtering (blurring, unsharp mask and medianning) can be applied only to color images. Hence there would be a good idea to apply color filters to RGB image before converting it to image of indexed colors. Choosing the rImage > Convert to > Convert to 8-bit indexed produces a dialog box with tools for manipulating with palette and the individual colors and a preview window. To convert an image to 8-bit Select the images to be processed on the screen. Choose Convert to 8-bit indexed from the rImage menu, - or Start the operation without choosing an image. Select an image you want to process from the dialog box. * For more detailed information on the selection procedure see "Selecting Several Images" on page 20. 72