public static Builder newBuilder(
        com.google.cloud.video.transcoder.v1.PreprocessingConfig.Color prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
<pre>
Control brightness of the video. Enter a value between -1 and 1, where -1
is minimum brightness and 1 is maximum brightness. 0 is no change. The
default is 0.
</pre>

<code>double brightness = 3;</code>

@return The brightness.
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/PreprocessingConfig.java