Transforms grayscale image to binary image. Threshold calculated individually for each pixel. For the method CV_ADAPTIVE_THRESH_MEAN_C it is a mean of blockSize x blockSize pixel neighborhood, subtracted by param1. For the method CV_ADAPTIVE_THRESH_GAUSSIAN_C it is a weighted sum (gaussian) of blockSize x blockSize pixel neighborhood, subtracted by param1.

Namespace: Emgu.CV
Assembly: Emgu.CV.World (in Emgu.CV.World.dll) Version: 4.1.1.3497 (4.1.1.3497)

Syntax

C++

Copy

public Image<TColor, TDepth> ThresholdAdaptive(
	TColor maxValue,
	AdaptiveThresholdType adaptiveType,
	ThresholdType thresholdType,
	int blockSize,
	TColor param1
)

Public Function ThresholdAdaptive ( 
	maxValue As TColor,
	adaptiveType As AdaptiveThresholdType,
	thresholdType As ThresholdType,
	blockSize As Integer,
	param1 As TColor
) As Image(Of TColor, TDepth)

public:
Image<TColor, TDepth>^ ThresholdAdaptive(
	TColor maxValue, 
	AdaptiveThresholdType adaptiveType, 
	ThresholdType thresholdType, 
	int blockSize, 
	TColor param1
)

member ThresholdAdaptive : 
        maxValue : 'TColor * 
        adaptiveType : AdaptiveThresholdType * 
        thresholdType : ThresholdType * 
        blockSize : int * 
        param1 : 'TColor -> Image<'TColor, 'TDepth>

Parameters

maxValue: Type: TColor
Maximum value to use with CV_THRESH_BINARY and CV_THRESH_BINARY_INV thresholding types
adaptiveType: Type: Emgu.CV.CvEnumAdaptiveThresholdType
Adaptive_method
thresholdType: Type: Emgu.CV.CvEnumThresholdType
Thresholding type. must be one of CV_THRESH_BINARY, CV_THRESH_BINARY_INV
blockSize: Type: SystemInt32
The size of a pixel neighborhood that is used to calculate a threshold value for the pixel: 3, 5, 7, ...
param1: Type: TColor
Constant subtracted from mean or weighted mean. It may be negative.

Return Value

Type: ImageTColor, TDepth
The result of the adaptive threshold

Reference

ImageTColor, TDepth Class

Emgu.CV Namespace

ImageAddLanguageSpecificTextSet("LST8C6F23A5_0?cs=&lt;|vb=(Of |cpp=&lt;|fs=&lt;'|nu=(");TColor, TDepthAddLanguageSpecificTextSet("LST8C6F23A5_1?cs=&gt;|vb=)|cpp=&gt;|fs=&gt;|nu=)");AddLanguageSpecificTextSet("LST8C6F23A5_2?cpp=::|nu=.");ThresholdAdaptive Method

Parameters

Return Value

Reference

ImageTColor, TDepthThresholdAdaptive Method