User manual MICROTEK SCANMAKER I900

[. . . ] Microtek ScanWizard Pro User's Guide for Windows English Copyright © 2004 by Microtek International, Inc. All rights reserved. Trademarks MicrotekTM, ArtixTM, ScanWizardTM Pro, and ArtixScanTM are trademarks of Microtek International, Inc. Macintosh® and Apple ® are trademarks or registered trademarks of Apple Computer, Inc. Windows® is a registered trademark of Microsoft Corporation. All other products or name brands are trademarks of their respective holders. Important Documents that you scan may be protected under copyright law. [. . . ] In the example below, the original has a slight color cast in the shadow and highlight portions of the image. With the use of the auto neutralizing and auto adjustment features, the color cast is removed, and the shadows and highlights are remapped accordingly. 4 7 5 8 6 The shadow point is defined as the lightness value L in an image that is output as black (mapped to the Minimum Output Level), while the highlight point is defined as the lightness value L that is output as white (mapped to the Maximum Output Level). The default values of the Minimum Output Level and Maximum Output Level are L=5. 0 and L=95. 0, respectively. Using AIC Tools 4-11 English English Using the Gradation Tool (LCH Mode only) The Gradation tool lets you adjust the midtones (the mid-level grays) of the lightness channel "L" of an image without altering the color itself. This is because even with changes to the luminance or lightness value, the chroma and hue values are kept constant. To prevent color images from losing saturation when adjusting the lightness, ScanWizard Pro provides a Saturation Range option. With this option, colors outside of a given chroma range are not affected by the manipulation of the gradation curve. In the example here, the original image is underexposed, with the middle tones of the image being too dark. The solution: Lighten the tones to brighten up the image. Place the image to be corrected on your scanner. Click the Overview button, and you will see the image appear in your Preview window. Select the area to be prescanned with the Scan Frame tool, then click the Prescan button to obtain a prescan image, and switch to the Prescan view in the View menu. Click the Gradation tool in the Settings window. Move the pointer over the curve, and drag the center of the curve to the left. This brighten up the midtones of the image. Check the Preview box so that the image in the Preview window is updated with the latest image correction. The update is done in the background and so may take a few moments to show. Click OK to confirm the correction. Original image Image corrected with Gradation tool 4-12 ScanWizard Pro for Windows Users Guide Use the Gradation tool to adjust the midtones of the lightness channel "L" of an image. In the example below, the original is underexposed, with the middle tones of the image being too dark. The corrected image shows the middle tones being brightened, but the saturation and hues of the image remain untouched. 4 6 5 7 Using AIC Tools 4-13 English English Using the Color Cast Tool (LCH Mode Only) The Color Cast tool is used to eliminate any unwanted color casts in an image, as well as to add a color cast without altering the lightness channel "L" values. In the example here, the original has a slight cyan cast that makes the image look cold and unappealing. The solution: Remove the undesirable color cast. Place the image to be corrected on your scanner. Original image 2. [. . . ] The default profile for color monitor is "Generic P22 1. 8 Gamma Monitor" and printer will set to "Display. " This is dimmed when operating under LCH mode Monitor selection shown here is set at default profiles for monitor and printer CMYK printer profile. Must select one if required Display using monitor compensation This check box controls the option on how the RGB destination data will be displayed. If check box is unchecked (disabled), the RGB data is displayed directly to the monitor. If checked, the RGB destination data will be simulated for the selected type of display monitor. Appendix-2 ScanWizard Pro for Windows Users Guide Display: This feature allows you to select the type of color monitor that corresponds with the one currently in use. [. . . ]