Class AdaptiveThresholdProcessor

Performs Bradley Adaptive Threshold filter against an image.

Inheritance

Object

AdaptiveThresholdProcessor

Implements

IImageProcessor

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: SixLabors.ImageSharp.Processing.Processors.Binarization

Assembly: SixLabors.ImageSharp.dll

Syntax

public class AdaptiveThresholdProcessor : IImageProcessor

Remarks

Implements "Adaptive Thresholding Using the Integral Image", see paper: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.420.7883&rep=rep1&type=pdf

Constructors

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AdaptiveThresholdProcessor()

Initializes a new instance of the AdaptiveThresholdProcessor class.

Declaration

public AdaptiveThresholdProcessor()

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AdaptiveThresholdProcessor(Color, Color)

Initializes a new instance of the AdaptiveThresholdProcessor class.

Declaration

public AdaptiveThresholdProcessor(Color upper, Color lower)

Parameters

Type	Name	Description
Color	upper	Color for upper threshold.
Color	lower	Color for lower threshold.

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AdaptiveThresholdProcessor(Color, Color, Single)

Initializes a new instance of the AdaptiveThresholdProcessor class.

Declaration

public AdaptiveThresholdProcessor(Color upper, Color lower, float thresholdLimit)

Parameters

Type	Name	Description
Color	upper	Color for upper threshold.
Color	lower	Color for lower threshold.
Single	thresholdLimit	Threshold limit.

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AdaptiveThresholdProcessor(Single)

Initializes a new instance of the AdaptiveThresholdProcessor class.

Declaration

public AdaptiveThresholdProcessor(float thresholdLimit)

Parameters

Type	Name	Description
Single	thresholdLimit	Threshold limit.

Properties

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Lower

Gets or sets lower color limit for threshold.

Declaration

public Color Lower { get; set; }

Property Value

Type	Description
Color

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ThresholdLimit

Gets or sets the value for threshold limit.

Declaration

public float ThresholdLimit { get; set; }

Property Value

Type	Description
Single

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Upper

Gets or sets upper color limit for thresholding.

Declaration

public Color Upper { get; set; }

Property Value

Type	Description
Color

Methods

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CreatePixelSpecificProcessor<TPixel>(Configuration, Image<TPixel>, Rectangle)

Creates a pixel specific IImageProcessor<TPixel> that is capable of executing the processing algorithm on an Image<TPixel>.

Declaration

public IImageProcessor<TPixel> CreatePixelSpecificProcessor<TPixel>(Configuration configuration, Image<TPixel> source, Rectangle sourceRectangle)
    where TPixel : struct, IPixel<TPixel>

Parameters

Type	Name	Description
Configuration	configuration	The configuration which allows altering default behaviour or extending the library.
Image<TPixel>	source	The source image. Cannot be null.
Rectangle	sourceRectangle	The Rectangle structure that specifies the portion of the image object to draw.

Returns

Type	Description
IImageProcessor<TPixel>	The IImageProcessor<TPixel>

Type Parameters

Name	Description
TPixel	The pixel type.

Implements

IImageProcessor