# getVariationScore method

double getVariationScore()

Gets the variation of the OVI color.

return Variation of the OVI color. throws DocumentException An error has occurred during Document Library execution.

## Implementation

    double getVariationScore() {
      Pointer<Float> pVariationScore = calloc();
      try {
        var err = documentSDK.id3DocumentHologramAuthenticationResult_GetVariationScore(_pHandle.value, pVariationScore);
        if (err != DocumentError.success.value) {
          throw DocumentException(err);
        }
        final vVariationScore = pVariationScore.value;
        return vVariationScore;
      } finally {
        calloc.free(pVariationScore);
      }
    }