How do you use a texture for vertex painting?

I want to vertex paint a ground object to use in Blenderpeople. I have a B&W mask image (bmp file) that I want to use to paint the ground. How do I use the image to vertex paint the object instead of manually painting it?

There is vertex colors, and texture paint, which one? If it’s vertex colors I don’t remember the exact steps but it was basically just the edit button that said make vertex colors after the texture was applied.