SHELL

invert

// invert binary tree : (right node >> left node && left node >> right node )
 const invertTree =(root)=>{
if(root===null) return root;
  let queue =[root] ; 
  while(queue.length>0){

let node =queue.shift() ; 
if(node !=null){
  let hold = node.left ;
  node.left =node.right; 
  node.right =hold ; 
  if(node.left) queue.push(node.left) ;

  if(node.right) queue.push(node.right) ;
}
  }
  
return root;

 }

invert

#!/bin/sh

# Make an inverse binary image mask (switch the 1s and 0’s)

# Create the inverse mask (Mark Jenkinson's approach. Very clever:
# Multiply by negative 1, then add 1). Make sure you pass in a binary mask)

fslmaths mask -mul -1 -add 1 -bin mask_inverse 

# OR use -binv flag

fslmaths mask -binv mask_inverse