public com.google.cloud.vision.v1.WebDetection.WebImage.Builder
          addFullMatchingImagesBuilder() {
        return getFullMatchingImagesFieldBuilder()
            .addBuilder(com.google.cloud.vision.v1.WebDetection.WebImage.getDefaultInstance());
      }
<pre>
Fully matching images on the page.
Can include resized copies of the query image.
</pre>

<code>repeated .google.cloud.vision.v1.WebDetection.WebImage full_matching_images = 4;
</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/WebDetection.java