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# HologramAuthenticationResult.correlationScore Property

Module: HologramAuthenticationResult

Type: float

## Definition

Correlation of the variation to the background.

Python

    correlation_score: float

Exceptions

> DocumentException
> An error has occurred during Document Library execution.

Dart

    double get correlationScore => getCorrelationScore();

Exceptions

> DocumentException
> An error has occurred during Document Library execution.

C#

    public float correlationScore
    {
        get => GetcorrelationScore();
    }

Exceptions

> DocumentException
> An error has occurred during Document Library execution.

Java

    public float getCorrelationScore() throws DocumentException

Exceptions

> DocumentException
> An error has occurred during Document Library execution.

Swift

    public var correlationScore: Float
        get {
            return try! getCorrelationScore()
        }
    }

Exceptions

> DocumentException
> An error has occurred during Document Library execution.

C

    int id3DocumentHologramAuthenticationResult_GetCorrelationScore (ID3_DOCUMENT_HOLOGRAM_AUTHENTICATION_RESULT hHologramAuthenticationResult, float * correlationScore)

Returns

> `int`
> An error code.
> See id3DocumentError file for the list of possible error codes.