Image to Surface Plot

[TheDro]

Hey everyone! I've been thinking about making a cool new background for my desktop and I thought of making something with transparent droplets on a surface rendered with Kerkythea. To do so, I first need to make the droplets and that could be time consuming if I want to make some in large numbers manually in Sketchup. However, I can surely find an easy way to make an image of droplets. Is there a plugin or a method out there to make a surface plot from an intensity map/image?

Thanks,
TheDro