User manual KOFAX VRS3

[. . . ] VirtualReScan® 3. 5 User's Manual 10300409-000 Revision A Copyright Copyright © 2004 Kofax Image Products. The information contained in this document is the property of Kofax Image Products. Neither receipt nor possession hereof confers or transfers any right to reproduce or disclose any part of the contents hereof, without the prior written consent of Kofax Image Products. No patent liability is assumed, however, with respect to the use of the information contained herein. [. . . ] The Contrast value may be set from 0 (very low contrast) to 100 (very high contrast). Similar to the Brightness setting, the Contrast setting is not shared between black and white, grayscale, and color modes. Gamma Slider and Gamma Correct Text Box The Gamma slider and Gamma numeric text box indicate the current value of the Gamma setting, which can range from -100 (very dark gamma) to +100 (very light gamma). Gamma may be set for black and white, grayscale, and color images, but is only shared between black and white and grayscale modes. This means that changing the value of the Gamma setting while in black and white mode also changes the Gamma setting for grayscale mode because VRS internally uses a single value to represent gamma for black and white and grayscale. The Gamma setting is not shared between non-color and color modes, however. Changing the value of the Gamma setting in black and white mode does not affect the value of the Gamma setting in color as VRS uses a dedicated value to represent color gamma. To update the Clarity tab settings 1 From the VRS Interactive Properties dialog box, select the Clarity tab. a To adjust the contrast and brightness at the same time, click within the boundaries of the brightness/contrast grid, then insert the pointer so that the intersection of the crosshairs represents the desired values for brightness and contrast. b To adjust the contrast and brightness separately, skip to the next step. VRS User's Manual 47 Chapter 2 2 In the Brightness text box, VRS displays the current brightness setting. To change the setting, do one of the following: · Click the arrows on the Brightness text box to increase or decrease the brightness level. · Move the Brightness slider control up or down to select a value. Note As soon as you change the brightness value, the Auto Brightness option is automatically disabled. To enable it again, select Auto Brightness again and VRS will calculate and reapply the brightness level automatically. 3 In the Contrast text box, VRS displays the current contrast setting. To change the setting, do one of the following: · Click the arrows on the Contrast text box to increase or decrease the contrast level. · Move the Contrast slider control left or right to select a value. 4 In the Gamma text box, VRS displays the gamma correction setting. The correction values range from Dark to Light, with Normal at the midpoint. To change the setting, do one of the following: · Click the arrows on the Gamma Correct text box to increase or decrease the gamma level. · Move the Gamma slider control left or right to select a value. Note Changes made to the Clarity tab are handled according to the way the Interactive Properties dialog box was launched. If the dialog box opened as the result of an exception, the changes apply to the image in question only. If the dialog box opened because you selected Preview or First Page mode, the changes also apply to subsequent scans. [. . . ] These settings are available only if Automatic Color Detection is enabled. You can select the following options: · Color: Image is processed in color, regardless of the results of the color detection process. · Black & White: Image is processed in black and white, regardless of the results of the color detection process. · Automatic: Image color is processed according to the results of the color detection process. [. . . ]