Visual Basic (Usage) | Copy Code |
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Dim instance As ImageEditor Dim threshold As Double instance.ClearBackground(threshold) |
Parameters
- threshold
- Background threshold level (range 0-100)
Background of scanned pages is typically off-white.
This method sets all pixels brighter than the specified threshold to pure white.
Licensing: Requires ClearImage Repair license
This method sets all pixels brighter than the specified threshold to pure white.
threshold
= 0 threshold does not modify the imagethreshold
= 100 sets all image pixels to whitethreshold
= 30% is recommendedLicensing: Requires ClearImage Repair license
Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family