@java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }
<pre>
Confidence threshold to filter detection results. If not set, a system
default value will be used.
</pre>

<code>float recognition_confidence_threshold = 2;</code>

@return The recognitionConfidenceThreshold.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ProductRecognizerConfig.java