Class AdaptiveThresholdFilter

A filter to apply adaptive thresholding to an image.

Inheritance
System.Object
AdaptiveThresholdFilter
Implements
Namespace: IronBarCode
Assembly: IronBarCode.dll
Syntax
public class AdaptiveThresholdFilter : Object, IImageFilter

Constructors

AdaptiveThresholdFilter()

Initializes a new instance of the AdaptiveThresholdFilter class.

Declaration
public AdaptiveThresholdFilter()

AdaptiveThresholdFilter(Color, Color, Single)

Initializes a new instance of the AdaptiveThresholdFilter class.

Declaration
public AdaptiveThresholdFilter(Color upper, Color lower, float threshold)
Parameters
Type Name Description
IronSoftware.Drawing.Color upper

The color to use for pixels that are above the threshold.
IronSoftware.Drawing.Color lower

The color to use for pixels that are below the threshold.
System.Single threshold

Threshold limit (0.0-1.0) to consider for binarization.

AdaptiveThresholdFilter(Single)

Initializes a new instance of the AdaptiveThresholdFilter class.

Declaration
public AdaptiveThresholdFilter(float threshold)
Parameters
Type Name Description
System.Single threshold

Threshold limit (0.0-1.0) to consider for binarization.

AdaptiveThresholdFilter(Single, Color, Color, Rectangle)

Initializes a new instance of the AdaptiveThresholdFilter class.

Declaration
public AdaptiveThresholdFilter(float threshold, Color upper, Color lower, Rectangle rectangle)
Parameters
Type Name Description
System.Single threshold

Threshold limit (0.0-1.0) to consider for binarization.
IronSoftware.Drawing.Color upper

The color to use for pixels that are above the threshold.
IronSoftware.Drawing.Color lower

The color to use for pixels that are below the threshold.
IronSoftware.Drawing.Rectangle rectangle

Rectangular region to apply the threshold.

AdaptiveThresholdFilter(Single, Rectangle)

Initializes a new instance of the AdaptiveThresholdFilter class.

Declaration
public AdaptiveThresholdFilter(float threshold, Rectangle rectangle)
Parameters
Type Name Description
System.Single threshold

Threshold limit (0.0-1.0) to consider for binarization.
IronSoftware.Drawing.Rectangle rectangle

Rectangular region to apply the adaptive threshold.

Properties

Lower

The color to use for pixels that are below the threshold. Default = Black.

Declaration
public Color Lower { get; set; }
Property Value
Type Description
IronSoftware.Drawing.Color

Rectangle

Rectangle region to apply the filter on.

Declaration
public Rectangle Rectangle { get; set; }
Property Value
Type Description
IronSoftware.Drawing.Rectangle

Threshold

Threshold limit (0.0-1.0) to consider for binarization. Default = 1.0.

Declaration
public float Threshold { get; set; }
Property Value
Type Description
System.Single

Upper

The color to use for pixels that are above the threshold. Default = White.

Declaration
public Color Upper { get; set; }
Property Value
Type Description
IronSoftware.Drawing.Color

Implements