imaqAddClassifierSample

Usage

int imaqAddClassifierSample(Image* image, ClassifierSession* session, const ROI* roi, const char* sampleClass, double* featureVector, unsigned int vectorSize);

Purpose

Adds a sample to a classifier. To add a sample to a custom classification session, use the featureVector and vectorSize parameters. To add a sample to any other type of classification session, use the image parameter.

Image Types Supported

IMAQ_IMAGE_U8

Parameters

Name	Type	Description
image	Image*	The image to add to the classifier. This parameter is optional if you are adding a sample to a custom classification session.
session	ClassifierSession*	The classifier session to use.
roi	const ROI*	The ROI containing the sample to add. Each contour of roi must be a rectangle, rotated rectangle, oval, annulus, or closed contour. Set this parameter to NULL to add the entire image.
sampleClass	const char*	The class to which this sample belongs.
featureVector	double*	The feature vector to add to the classifier. Use this parameter only when you are using a custom classifier. For any other type of classifier, set this parameter to NULL.
vectorSize	unsigned int	The number of elements in featureVector. Use this parameter only when you are using a custom classifier. For any other type of classifier, set this parameter to 0.

Return Value

Type	Description
int	On success, this function returns a non-zero value. On failure, this function returns 0. To get extended error information, call imaqGetLastError().