"Randomized" Point distribution according to BW Image sampler

Hello, First time poster here, and also Grasshopper newbie still.

I'm working on a project where essentially the goal is to create a point grid (somewhat randomly placed) according to an image sampler with the darker regions resulting in less points and the brighter regions resulting in more points. 

These points will eventually be used to create a surface and Voronoi pattern based on the same image sampler. ( this part i've got more or less solved but i havent figured out how to populate the points according to the image sampler) 

I have tried using multiple previous patches from other discussions on similar topics but for some reason i cant seem to make it work. Any help would be much appreciated!