Why is JavaCV needed if OpenCV already has a library for connecting to a Java project?

Question

Java

Hello. Just starting to learn OpenCV and computer vision in general. While reading the articles, I came across the fact that there is also a JavaCV interface for working with OpenCV. So it's not clear whether it makes sense to use JavaCV? maybe there are some additional functions?
Thank you very much in advance!

Answer 1

Watermelons were stolen from one man all summer,
he was tired of all this and he put up a sign:
"One watermelon is poisoned!"
The next day he comes, looks at all the whole watermelons,
and there is a sign next to him : "Now there are two of them! "

everything is written right there : a wrapper over a bunch of libs, not only OpenCV