something one way or the other. As noted the leverage ratio of v brake levers is wrong for cantilever brakes.
There are devices out there like the "Travel Agent" that will allow the use if Canti brake levers with V-brakes. Unfortunately these devices don't work the other way around, using V-brake levers with cantilever brakes.
So, yup if you want them to work right you'll need levers specifically for canti brakes.