CogCNLSearchResult.Contrast Property

CogCNLSearchResult Contrast Property

Cognex VisionPro 9.5

The Contrast is the ratio of the standard deviation of the pixels in the trained pattern to the standard deviation of the care pixels in the located pattern.

Namespace: Cognex.VisionPro.CNLSearch
Assembly: Cognex.VisionPro.CNLSearch (in Cognex.VisionPro.CNLSearch.dll) Version: 69.0.0.0

Syntax

C++

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public double Contrast { get; }

public double Contrast { get; }

Public ReadOnly Property Contrast As Double 
	Get

Public ReadOnly Property Contrast As Double 
	Get

public:
property double Contrast {
	double get ();
}

public:
property double Contrast {
	double get ();
}

Property Value

Type: Double

Exceptions

Exception	Condition
CogCNLSearchContrastNotComputedException	This result was not created using the LinearSearch algorithm.

Remarks

The contrast value is the ratio of the standard deviation of the image pixel values to the standard deviation of the model image pixels (including only "care" model pixels and image pixels that correspond to "care" model pixels). Contrast provides a measure of the image contrast of the search image relative to the image contrast of the trained model. Values greater than 1.0 indicate a search image with greater contrast than the trained model; values less than 1.0 indicate a search image with lower contrast.