User manual AVISION AV210C2

[. . . ] User's Manual Avision Inc. Trademarks Microsoft is a U. S. registered trademark of Microsoft Corporation. Windows and MS-DOS are trademarks of Microsoft Corporation. IBM, PC, AT, XT are registered trademarks of International Business Machines Corp. [. . . ] Original Source Choice: ADF/Multipage 2. The higher the value, the brighter the image. Contrast Adjusts the range between the darkest and the lightest shades in the image. The higher the contrast, the bigger the different grayscale. 1 2. 2 Decrease Brightness Normal Increase Brightness Decrease Contrast Normal Increase Contrast 4-5 4. 1. 5 Enlarging Previewed Image 1. Zoom View Enlarge your previewed image to the max. Note this function only enlarging your preview image. 1 Before Zoom After Zoom 4-6 User's Manual 4. 1. 6 Inverting and Selecting Your Image 1. Invert The invert command reverses the brightness and the color in the image. For color images, each pixel will be changed into its complementary color at the command of Invert. 1 2 3 Before Invert After Invert 4-7 2. Mirror Function Reverse the right and left side of your image. Before Mirror After Mirror 3. Auto Select Image Automatically set the whole image as your scan area. (Or you may resize the area by "drag and drop" diagonally. ) 4-8 User's Manual 4. 1. 7 Enhancing Your Image 1. Descreen Eliminates the moire patterns* commonly found in printed matter. Sharpen Sharpen the scanned image. 1 2 34 Before Descreen After Descreen Before Sharpen After Sharpen *Moire pattern: An undesirable pattern in a color printing resulting from incorrect screen angle of overprinting halftone. 4-9 3. Color Adjustment Adjusts the color quality of the image so that it comes close to the original. This function uses default parameters to adjust the image. Normal After Color Matching 4. Auto Level Automatically adjusts the highlight and shadow areas of the scanned image to optimize your image. Normal After Auto Level 4-10 User's Manual 4. 2 Using the Advanced Features 4. 2. 1 The Switch button 1. Click the button to pop up the advanced settings bar at the right side. The advanced settings include Highlight/Shadow, Hue/Saturation/Lightness, Curve, Color Balance, Color Drop-out. The Advanced Settings bar 1 2 4-11 4. 2. 2 Adjusting Highlight/Shadow Levels Highlight refers the lightest point in a scanned image while shadow refers the darkest point. Using Highlight and Shadow tool together allows you to extend the range of color and reveal more details in a gray or color image. 1 2 3 4 1. Highlight: The lightest point of an image. Pointer: Move the pointer to change the value. 4-12 User's Manual When the value of gamma changes, the image changes accordingly. Gamma Value: 1. 0 Gamma Value: 1. 4 Gamma Value: 2. 0 4-13 When the value of highlight and shadow change, the image changes accordingly. Highlight: 255/Shadow: 0(Normal) Highlight: 210/Shadow:10 Highlight: 200/Shadow:0 Highlight: 255/Shadow: 50 4-14 User's Manual 4. 2. 3 Adjusting the Brightness Curve Adjusts the midtones of the image without dramatically altering then lightest and the darkest areas. When the curve is moved up or down, the image turn brighter or darker. 4-15 4. 2. 4 Changing Color Hue/Saturation/Lightness Improve your image by changing the level of hue/saturation/lightness. [. . . ] Gently open the Scanner Front Door to the left. Carefully pull the paper out of the ADF unit. Your Scanner is now ready to use. Push button Original Document 7-2 User's Manual 7. 2 Questions and Answers Question: Paper becomes jammed during scanning. Question: More than one sheet of paper are fed into the scanner. [. . . ]