private double findLevelMaxCoeff(ImageTree imgTree){
  double h=0.0;
  double v=0.0;
  double d=0.0;
  h=findSubBandMaxCoeff(imgTree.getHorizontal(),2);
  v=findSubBandMaxCoeff(imgTree.getVertical(),3);
  d=findSubBandMaxCoeff(imgTree.getDiagonal(),4);
  return CommonUtil.max(h,CommonUtil.max(v,d));
}

private double findLevelMaxCoeff ( ImageTree imgTree ) { double h = 0.0 ; double v = 0.0 ; double d = 0.0 ; h = findSubBandMaxCoeff ( imgTree . getHorizontal ( ) , 2 ) ; v = findSubBandMaxCoeff ( imgTree . getVertical ( ) , 3 ) ; d = findSubBandMaxCoeff ( imgTree . getDiagonal ( ) , 4 ) ; return CommonUtil . max ( h , CommonUtil . max ( v , d ) ) ; }
utility method to find the level adaptive max coefficient
