ScanFix Xpress v9.0 for .NET - Updated
TargetVariance Property




Accusoft.ScanFixXpressSdk Namespace > BrightnessContrastOptions Class : TargetVariance Property
Gets and sets the largest allowable variance in brightness across the image.
Syntax
'Declaration
 
Public Property TargetVariance As Byte
'Usage
 
Dim instance As BrightnessContrastOptions
Dim value As Byte
 
instance.TargetVariance = value
 
value = instance.TargetVariance
public byte TargetVariance {get; set;}
public: __property byte get_TargetVariance();
public: __property void set_TargetVariance( 
   byte value
);
public:
property byte TargetVariance {
   byte get();
   void set (    byte value);
}
Remarks

The default value is 25.

Valid values are 0 to 255.

This value sets the allowable amount of change in the background color across an image. An example of this would be a book page scanned on a flatbed scanner, where one edge was darker than the rest due to the greater distances from the scanner bed. This image would have a relatively high background variance. The algorithm will suggest the adaptive correction method for images that exceed the allowable background variance.

See Also

Reference

BrightnessContrastOptions Class
BrightnessContrastOptions Members

Is this page helpful?
Yes No
Thanks for your feedback.