public double ContrastFraction { get; }

public double ContrastFraction { get; }

Public ReadOnly Property ContrastFraction As Double 
	Get

Public ReadOnly Property ContrastFraction As Double 
	Get

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

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

Property Value

The contrast fraction is a number between zero and one. It is computed by dividing the average contrast of the matching image features by the average contrast of the trained pattern features. If this ratio exceeds one it is reported as exactly one.

You can discard results with very low contrast (relative to the pattern) by setting the ContrastFractionThreshold. You should supply a non-zero value that is lower than the lowest contrast fraction you ever expect to receive from a true instance of your pattern.