User manual MICROTEK SCANMAKER 1000XL PRO Reference Manual

[. . . ] Microtek ScanWizard Pro Reference Manual Macintosh version i Copyright 2001 by Microtek International, Inc. All rights reserved. Trademarks Microtek, AritxTM, and ScanWizardTM Pro are trademarks or registered trademarks of Microtek International Inc. Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated. All other products or name brands are trademarks of their respective holders. Important Documents that you scan may be protected under copyright law. The unauthorized use of such documents could be a violation of the rights of the copyright holder. [. . . ] Advanced Image Correction The Advanced Image Correction (AIC) tools let you adjust and enhance the image, and image corrections are displayed in real time. The AIC tools available for use will vary, depending on the color space (LCH or Native mode) chosen in the "More" command under the Preferences menu (found in the Preview window). Custom options These allow you to add or remove custom settings through a pull-down menu for each Advanced Image Correction control. Reset button This changes settings in the Advanced Image Correction controls to their default values. 58 Microtek ScanWizard Pro for Macintosh Job The Job box shows the currently selected scan job, which is also shown in the Scan Job window and the Preview window. If you have multiple scan jobs, not only are these reflected as multiple entries in the Scan Job window and as multiple images in the Preview window, but they will also be shown as multiple entries in the Job box of the Settings window. To select from multiple scan jobs, choose the scan job you wish in the Job box; this will automatically select the corresponding scan job in the Preview and Scan Job windows as well. Conversely, selecting a scan job in either the Preview or Scan Job window will automatically show that selection in the Job box. This means that a quick look at the Job box, the Preview Window, or the Scan Job window can show you which is your currently selected scan job. Correspondence between the Job box in the Settings window and the current scan job in the Preview and Scan Job windows Reference: The Settings Window 59 Type 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. 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 48bit option available for the ScanMaker 5, ScanMaker 2000, the Artix line of scanners, and other Microtek professional pre-press scanners. 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. 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. 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. 60 Microtek ScanWizard Pro for Macintosh 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. 256 Colors (Default) / 256 Colors (Custom) These are single-channel images (8 bits per pixel) that use a color lookup table containing up to 256 colors. As an initial setting, selecting 256 Colors (Default) uses an Adaptive palette with Diffusion. If the 256 Colors (Custom) option is selected, the dialog box below appears. [. . . ] Also, blacks and neutrals that print black are not influenced easily by shifts in the chromatic inks which cause color casts in the shadow tones. Separations produced with greater UCR produce darker blacks which result in better shadow detail. However, some printers don't like high UCR because of on-press dot gain and on-press contrasty rosettes. Reference: Appendix 139 GCR Gray component replacement is a variation on undercolor removal. The theory is simple: Whenever amounts of cyan, magenta, and yellow are present in the same color, that color has a gray component. [. . . ]