@java.lang.Override
  public int getUnderExposedLikelihoodValue() {
    return underExposedLikelihood_;
  }
<pre>
Under-exposed likelihood.
</pre>

<code>.google.cloud.vision.v1.Likelihood under_exposed_likelihood = 13;</code>

@return The enum numeric value on the wire for underExposedLikelihood.
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/FaceAnnotation.java