User manual MICROTEK PC R SWPRO 0200

[. . . ] Microtek ScanWizard Pro Reference Manual for Windows i Copyright © 2000 by Microtek International, Inc. All rights reserved. Trademarks Microtek®, ScanMaker®, and ScanWizard® are registered trademarks of Microtek International Inc. Adobe®, Acrobat®, and PhotoDeluxeTM are trademarks or registered trademarks of Adobe Systems Incorporated. Caere®, OmniPage®, and PageKeeper® are registered trademarks of Caere Corporation. Ulead® and PhotoImpact® are registered trademarks of Ulead Systems, Inc. [. . . ] You can override the auto-settings by defining your own custom dynamic range (Dmin/Dmax) values to all or each individual RGB channels. Manual setting tools are provided in the AIC Dynamic Range dialog box shown below. "Automatic" is checked & will display to indicate auto setting is on when the Auto button is clicked Access to other AIC tools Drag sliders to define custom Dmin/Dmax settings Enter custom Dmax setting here Enter custom Dmin setting here Click to revert to the Scan Wizard Pro default setting Click to apply or revert to automatic setting (ScanWizard Pro algorithm) when dissatisfied with manual setting Click to revert to the custom setting defined right after current start up Click to save and add the current custom setting to Dynamic Range pre-set settings Observe histogram density values at cursor position as it is swept around the histogram Click to automatically apply the full range setting "Custom" is checked & will display to indicate manual setting is on when the Dmin or Dmax is manually adjusted Click to delete saved custom Dynamic Range settings (if any) from folder Click to automatically or manually balance all RGB channels Click to automatically or manually balance individual RGB channel 62 Microtek ScanWizard Pro for Windows You can also use the Eyedropper tools to define Dmin and Dmax settings. Just move the cursor toward the prescan image while the AIC Dynamic Range dialog box is on display. Notice that the cursor automatically transform itself into Black Eyedropper tool (default). The Black Eyedropper tool appears when you move cursor toward the prescan while AIC Dynamic Range dialog box is on display. Press Alt key to switch tool into White Eyedropper and use it to assign the Dmax (highlight) setting. Release Alt key to revert back to Black Eyedropper tool. Enable this check box to show simulated effect of the adjustment on the prescan image Reference: The Settings Window 63 White/Black Points tool For color and gray images, this tool allows you set white/black points; for lineart image, it carries out threshold adjustment feature. The White/Black Points dialog box (Color/Gray image) By default, this tool automatically determines the lightness (but not chroma and hue) of a prescan color or gray image. When the default setting fails to provide the lightness you want for your prescan, you can click the Auto button to allow the tool to analyze your prescan and then auto-clip the White and Black points of the Lightness histogram to optimize lightness of the output image. You can override the auto setting by providing your own custom clipping values in the "L" edit box for both White and Black points or . The tool also provide option to auto-neutralize undesirable color cast in either or both highlight and shadow areas of the image. Observe Histogram Input Lightness, Pixel Counts, & % of Lightness values at cursor position as it is swept around the histogram Check to AutoNeutralize unwanted color cast in Shadow (Black) area (LCH Mode only) Check to AutoNeutralize unwanted color cast in Highlight (White) area (LCH Mode only) Click to define custom parameters (in %) for Auto Clipping, Output Levels, and Highlight/ Shadow Markers Click to apply the automatic (ScanWizard Pro algorithm) or custom clipping setup values of the prescan Access to other AIC tools Drag sliders to define custom Lightness settings Enter custom Lightness, Chroma, & Hue values for Shadow (Black) area here. C & H values are applicable only when the Shadow check box of Auto Neutralize is enabled Enter custom Lightness, Chroma, & Hue values for Highlight (White) area here. C & H values are applicable only when the Highlight check box of Auto Neutralize is enabled Click to revert to the Scan Wizard Pro default setting Click to revert to the custom setting defined right after current start up Click to save and add the current custom setting to Lightness preset settings 64 Microtek ScanWizard Pro for Windows You can also use the Eyedropper tools to define the two end points of the Highlight (White) and Shadow (Black). Simply move the cursor toward the prescan image while the AIC White/Black Points dialog box is on display. Notice that the cursor automatically transform itself into Black Eyedropper tool (default). The Black Eyedropper tool appears when you move cursor toward the prescan while AIC White/Black Points dialog box is on display. Press Alt key to switch tool into White Eyedropper and use it to assign the White (Highlight) Point setting. Release Alt key to revert back to Black Eyedropper tool. Enable this check box to show simulated effect of the adjustment on the prescan image Reference: The Settings Window 65 The Threshold dialog box (Line-art image) For line-art image, the White/Black Point tool becomes a Threshold correction tool. The threshold values are in the range of 0 through 255. Sharpen This option lets you further enhance line-art image quality if your original lineart material appears blur (e. g. , text printed by inkjet, dot matrix printer, or contains text of small points). 66 Microtek ScanWizard Pro for Windows Gradation Curve tool (LCH mode only) The Gradation Curve tool lets you control the gamma, which measures the intensity affecting the mid-level grays (midtones) of an image. Gamma is commonly used to describe the relationship between output density to the original density across the mid-tones. Adjusting the gamma lets you change the values of the middle range of gray tones without dramatically altering the shadows and highlights. In many ways, the Gradation Curve tool gives you the most control for adjusting an image's values, but beginners may take some time to master its intricacies. The Gradation Curve tool applies to grayscale and color images and is not available for use with line-art or halftone scan modes. How to read the curve Original curve: Straight diagonal line Modified curve with points moved up The curve shows the relationship of the brightness changes across the middle pixels between the resulting image and the original. When you open the Curves dialog box, the line on the graph is diagonal because the Input and Output values are the same. The x axis of the graph represents the original brightness values of the pixels, from 0 to 255, for 8-bit scanners (see the table on next page); the y axis represents the new brightness values. [. . . ] RGB The color model in which every color is composed of a varying amount of the three colors of red, green, and blue. Saturation The intensity of a color, or the amount of color in a specific hue . For instance, the image of a bright red apple will appear to be "more red" if the colors are saturated. Scaling The process of creating larger or smaller images in ScanWizard Pro, so that the images don't have to be resized later when they are delivered to the imageediting program. [. . . ]