message: change border type for medianBlur to BORDER_ISOLATED
diff: @@ -3162,7 +3162,7 @@ void cv::medianBlur( InputArray _src0, OutputArray _dst, int ksize )
  }
  else
  {
  - cv::copyMakeBorder( src0, src, 0, 0, ksize/2, ksize/2, BORDER_REPLICATE );
  + cv::copyMakeBorder( src0, src, 0, 0, ksize/2, ksize/2, BORDER_REPLICATE|BORDER_ISOLATED);
  int cn = src0.channels();
  CV_Assert( src.depth() == CV_8U && (cn == 1 || cn == 3 || cn == 4) );
  