User`s manual

58 Microtek ScanWizard Pro for Mac OS X
Type
A. RGB: RGB (Red, Green, and Blue) images use three colors to reproduce up
to 68.7 billion colors. Because scanners and monitors are RGB devices, the
RGB color space is the most commonly used space for capturing and
displaying images. ScanWizard Pro offers standard RGB and 48-bit RGB
color selection, with the 48-bit option available for the ScanMaker 5,
ScanMaker 2000, the Artix line of scanners, and other Microtek
professional pre-press scanners.
B. Grayscale: Grayscale images use shades of gray to simulate gradations of
color or tonal values, and contain 8 bits per pixel. The Grayscale 16-bit
option is provided in ScanWizard Pro for professional pre-press scanners.
C. CMYK: CMYK images are made up of the standard four colors (cyan,
magenta, yellow and black or K) for separated film or digital files used for
sheetfed or web offset printing. CMYK mode instantly converts the
scanner’s RGB input to the CMYK color space. CMYK images are four-
channel images, containing 32 bits per pixel.
D. Lab Color: Lab images are three-channel images containing 24 bits per
pixel. Lab mode is useful for editing a pixel’s luminance but not its color
values. Lab mode produces device-independent color and is recommended
for moving images between systems or printing to a PostScript Level 2
printer.
E. Web / Internet Colors: This mode is useful for displaying images on the
Web or Internet. Output for the Web / Internet color mode in ScanWizard
Pro is 8-bit, 256 indexed color images in the sRGB color space.
The Type box shows you the image type of the current scan job. ScanWizard
Pro allows direct scanning in the following color spaces described below.