How to hide title if title empty

Hi everyone !

I have several images with title and others with no title.
In the admin panel, the option “Show Title” is activated (default).

So when an image doesn’t have a title, the black div still appears with no text inside.
I’d like to hide this black div if there’s no title for the image.
I think this is possible, but i can’t figure how to do this.

Thanks in advance for your help !