//if(a>=90&&a<=360) { std::cout << " numTuple: " << numTuple << " a: " << a << " b: " << b << std::endl; }
if(p1==0&&p2==0&&p3==0){
unsigned char *zPtr1 = (unsigned char *) alphaImage->GetScalarPointer( i , j , k );
//if(a>=90&&a<=360) { std::cout << " numTuple: " << numTuple << " a: " << a << " b: " << b << std::endl; }
if(p1==0&&p2==0&&p3==0){
unsigned char *zPtr1 = (unsigned char *) alphaImage->GetScalarPointer( i , j , k );