Visioneer 8820 manual Adjusting the Brightness and Contrast, To adjust the brightness and contrast

Page 51

ADJUSTING THE SETTINGS ON THE SCAN MANAGER PRO 47

ADJUSTING THE BRIGHTNESS AND CONTRAST

Sometimes an item is scanned with the brightness and contrast set to be too light or too dark. For example, a note written with a light pencil may need to be scanned darker to improve legibility.

The histogram shows the amount of the image (that is, the number of pixels) at different brightness levels. From left to right, the histogram indicates dark to light. To see this visually, drag the Brightness slider back and forth and watch how the distribution of pixels changes to indicate a darker or lighter image.

The following ﬁgure shows the brightness and contrast options:

To adjust the brightness and contrast:

1.Drag the Brightness slider to the left to make the item darker or to the right to make the item lighter.

You can also type a number directly into the brightness setting box, or click the up and down arrows next to the box to increase or decrease the setting.

Image 51

Contents Visioneer OneTouch Scanner P Y R I G H T I N F O R M a T I O N B L E O F C O N T E N T S Visioneer OneTouch 8820 Scanner Specifications WHAT’S in the BOX WelcomeVisioneer Onetouch 8820 Scanner Visioneer ONE Touch 8820 Scanner Getting the Paperport Software USER’S Guide What YOU NeedTo install the PaperPort software InstallingVisioneer Onetouch 8820 Scanner Installation Guide To connect the OneTouch 8820 scanner to a USB port Connecting the ScannerVisioneer Onetouch 8820 Scanner Installation Guide Power cord To check the status of the scanner Checking OUT Your ScannerIf the Scanner is not Properly Connected To connect the scanner Scan from the PaperPort Software or Other Twain Software Three Ways to Scan Paper ItemsScan with the Scanner Buttons Scan from the ScreenTo scan by pressing a button on the scanner Scanning Paper Items with the Onetouch ButtonsTo scan from the screen Scanning from the Button Panel on the ScreenAbout the Onetouch Buttons Button Preconﬁgured SettingsScanning Transparencies Brief ExplanationTo position a transparency for scanning Mask for 5 by Mask for 35mm film Scanning Transparencies To scan the transparency Scanning Transparencies Configuring the Scanner To display the Conﬁguration dialog box from the Button Panel About the Configuration Dialog BOXClick this Getting Help To select new options for a scanner button Selecting NEW Options for the ButtonsCreating NEW Configurations Adjusting Scan Settings and page SettingsTo adjust the scan settings and page settings Visioneer Onetouch 8820 Scanner Installation Guide Configuring the Scanner Visioneer Onetouch 8820 Scanner Installation Guide Configuring the Scanner About Jpeg Compression To set preferences Setting PreferencesVisioneer Onetouch 8820 Scanner Installation Guide Configuring the Scanner Scanning from the Paperport Software To set up the PaperPort software with the scannerTo scan an item Scanning AN Item with the Twain ButtonClick AutoScan to scan with your preset scan choices To scan manually To scan automatically Click AutoScan Getting Help with the Paperport Software To adjust a setting Adjusting the Settings on the Scan Manager PROTo save a new proﬁle Saving a NEW ProfileVisioneer Onetouch 8820 Scanner Installation Guide Adjusting the Resolution and Sharpness To use the advanced options To adjust the resolution and sharpnessTo adjust the brightness and contrast Adjusting the Brightness and ContrastTo use the Sampler buttons Adjusting GAMMA, SATURATION, and Color HUE To adjust the color settings Adjusting Output Size To manually set the output size for an item To Auto Trim an item Click Auto TrimAdjusting the Settings on the Scan Manager PRO Area you selected to scan Saving a Custom Size To save a custom size settingScan Info BOX Zooming in and OUTTo enlarge and reduce the preview image To set the Scan Manager Pro preferences Getting Help with the Scan Manager PRO To see the Scan Manager Pro help information Cleaning the Scanner GlassOperating temperature Scanning resolutionScanner dimensions WeightD E Page Index