User manual MICROTEK MACX R SWPRO 0302

[. . . ] Microtek ScanWizard Pro Reference Manual For Mac OS X Copyright © 2002 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. Macintosh® and Apple® are registered trademarks of Apple Computer, Inc. Windows® is a registered trademark of Microsoft Corporation. [. . . ] Lab mode produces device-independent color and is recommended for moving images between systems or printing to a PostScript Level 2 printer. 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. 58 Microtek ScanWizard Pro for Mac OS X F. 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. The file size is smaller for images in this mode. 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. · Palette: The Palette option lets you choose the method for creating the color palette table. Uniform uses a 6-6-6 fixed color palette table. Adaptive (default) creates a color palette table from the more commonly used areas of the color spectrum that appears in the image. Dither: The Dither option can improve the color quality of the 256indexed color image for photographs or continuous-tone images, using a technique of mixing available colors to simulate missing colors. Pattern uses a structured pattern to simulate missing colors. Diffusion (default) uses the error diffusion technique to dither colors and produces the best quality for 256 colors. · G. Line art: Line Art images are made up of one bit of color (black or white) per pixel. Few editing options are available in this mode, but this mode is useful for images consisting purely of black and white or even single colors, such as mechanical drawings, blueprints, or fine-line illustrations. Black-and-White Diffusion: This is a single-bit black-and-white image dithered with error diffusion. The black and white pixels are arranged in a way as to "fool" the eye into seeing gray. Reference: The Settings Window 59 Resolution settings The settings related to resolution include the resolution box, the resolution list box, and the resolution unit. Resolution is the sampling of image pixels per measurement unit or the amount of pixel information stored in an image. Together, the image resolution and dimensions determine the file size of the image, which is measured in kilobytes (KB) or megabytes (MB). The resolution of an image is important in determining the quality of the output image. Resolution is also directly related to file size, and the higher the resolution, the larger the resulting file size will be. When dealing with resolution, remember to distinguish between optical resolution and interpolated resolution. Optical resolution is the "real" resolution as measured by the scanner's optics. Interpolated resolution is software-enhanced resolution and can be useful for enlarging very small images or for printing line art to obtain superior results. A. [. . . ] The theory is simple: Whenever amounts of cyan, magenta, and yellow are present in the same color, that color has a gray component. Some or all of this gray component can be printed with black ink while maintaining the original color appearances. In contrast to UCR, GCR involves a more general color replacement, with black being substituted over all colors. The neutral center of both diagrams looks the same. [. . . ]