📘 eBookScan
Introduction User Assistance Scanner Information The TWAIN Interface Scan Profile Profile Management Scan Settings Overview (Main Tab) Scan Type Individual Settings Merge Pages Split Pages Card Scanning Mode Page Size Scan Mode Document Type Resolution Brightness Contrast Page Settings Front / Rear Side Overview (Adv. Tab) Color Matching Color Dropout Descreen Filter Gamma Histogram HSL Channel Threshold Overview (Pref. Tab) Auto Preview Save Last Settings ADF Prefetch Image Enhancement Remove Blank Pages Multi-Image Output Image Edge Fill Remove Punch Holes Multi-Feed Detection Continuous Scan Overview Scan Area Magnifying Glass Hand Tool Scan Info Buttons: Preview/Scan General Guide Step by Step Scan by Profile
Contrast  
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The higher the contrast, the sharper the image. The lower the contrast, the more blurry an image will be.  
 
You may adjust the contrast either way:  
·Slide the thumb of the scroll bar to the right or left, which raises or lowers the differences between light and dark colors in your image.  
·Click the arrow signs on the right and left ends.  
The current value is shown to right of each scroll bar.