mark: opencv fuzzy designated area

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This link: https://blog.csdn.net/CrystalShaw/article/details/90261601

• Original video

       cv::Mat syuv(height, width, CV_8UC4, (void*)data);

• ROT selected area in the original picture

       cv::Mat ROT(syuv,cv::Rect(x, y, w, h));

• Do obfuscate ROT area

      cv::blur(srcROT,srcROT,cv::Size(30,30),cv::Point(-1,-1));
      cv::GaussianBlur(srcROT, srcROT, cv::Size(15, 15), 1.5, 1.5);

• Such inshow out syuv is processed effects.
  cv :: imshow ( "blur", syuv);