Java怎么提升视频质量？

Java怎么提升视频质量，比如我有个视频，但清晰度很低。想用JavaCV或者其它库，怎么提升视频清晰度，降噪等等，谢谢。

用JavaCV试了，效果但效果不太好。

代码如下：

import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.FrameGrabber.Exception;
import org.bytedeco.javacv.FrameRecorder;
import org.bytedeco.javacv.OpenCVFrameConverter;
import org.bytedeco.opencv.global.opencv_imgproc;
import org.bytedeco.opencv.opencv_core.Mat;

public void local(String videoFilePath) {
    log.info("start...");
    var videoFile = new File(videoFilePath);
    if (!videoFile.exists()) {
      log.info("{}: file no exists!", videoFilePath);
      return;
    }
    var outputVideoFilePath = "./test.mp4";
    try (FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(videoFilePath)) {
      // 创建FrameGrabber对象并打开视频文件
      grabber.start();
      // 新视频文件路径及参数
      int width = grabber.getImageWidth();
      int height = grabber.getImageHeight();
      var frameRate = grabber.getFrameRate();

      // 创建FrameRecorder对象并设置视频文件参数
      FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(outputVideoFilePath, width, height);
      recorder.setFrameRate(frameRate);
      recorder.start();
      // 逐帧读取视频文件
      Frame frame;
      while ((frame = grabber.grabFrame(false, true, true, false)) != null) {
        // 将帧转换为OpenCV Mat
        OpenCVFrameConverter.ToMat converter = new OpenCVFrameConverter.ToMat();
        Mat src = converter.convert(frame);
        // 对每一帧图像进行处理
        Mat frameMat = new Mat(src);
        Mat denoisedMat = new Mat();
        opencv_imgproc.medianBlur(frameMat, denoisedMat, 11);
        Mat denoisedMat1 = new Mat();
        OpenCVFrameConverter.ToMat converter1 = new OpenCVFrameConverter.ToMat();
        // 将处理后的每一帧图像写入新的视频文件
        recorder.record(converter1.convert(denoisedMat1));
      }

      // 关闭FrameGrabber
      grabber.stop();
      grabber.release();
      // 关闭FrameRecorder
      recorder.stop();
      recorder.release();

      log.info("If the execution is successful, the output file path: {}", outputVideoFilePath);
    } catch (FrameRecorder.Exception | Exception e) {
      throw new RuntimeException(e);
    }
  }