NoiseFilter Property (Device)

In This Topic

Gets or sets the noise filter for current scan session.

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration

Public Property NoiseFilter As NoiseFilter

public NoiseFilter NoiseFilter { get; set; }

public: __property NoiseFilter get_NoiseFilter();
public: __property void set_NoiseFilter(
   NoiseFilter value
);

public:
property NoiseFilter NoiseFilter {
   NoiseFilter get();
   void set(NoiseFilter value);
}

Exceptions

Exception	Description
TwainInvalidStateException	Thrown if device is in wrong state.
TwainDeviceCapabilityException	Thrown if device does not support capability.
DebuggerException	Thrown if the .NET debugger is used and the function evaluation requires all threads to run.

Remarks

Call this property only when device is opened (State == DeviceState.Opened).

Supported pixel types can be received by the GetSupportedNoiseFilters method.

Example

This C#/VB.NET code shows how to apply automatic noise filter to images acquired from the device.

VB.NET


Public Sub ScanColorImageWithNoiseFilter(device As Vintasoft.Twain.Device)
    device.ShowUI = False
    device.DisableAfterAcquire = True

    device.Open()
    device.PixelType = Vintasoft.Twain.PixelType.RGB
    device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches
    device.Resolution = New Vintasoft.Twain.Resolution(300.0F, 300.0F)
    device.NoiseFilter = Vintasoft.Twain.NoiseFilter.Auto

    device.Acquire()
End Sub


public void ScanColorImageWithNoiseFilter(Vintasoft.Twain.Device device)
{
    device.ShowUI = false;
    device.DisableAfterAcquire = true;

    device.Open();
    device.PixelType = Vintasoft.Twain.PixelType.RGB;
    device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches;
    device.Resolution = new Vintasoft.Twain.Resolution(300f, 300f);
    device.NoiseFilter = Vintasoft.Twain.NoiseFilter.Auto;

    device.Acquire();
}

Requirements

Target Platforms: .NET 10; .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

Device Class
Device Members

GetSupportedNoiseFilters
Open

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