Ngon Displacement or Extrude modifier

Some people like to use the knife tool to creat ngons on a texture (around say a couple bricks) so we can extrude those parts to add more flare to it. I was thinking what about a sorta displacement modifier for this an ngon one that works solely on a black or white image no grey gradients though. You use whatever image, it does some voodoo magic which traces the black lines as if using a knife (down what can be considered the center of a line for thiccum lines) tool then extrudes it on whatever axis you choose. You also have a scale option that basically insets the polys before extruding them out. The grey map comes in from blender itself. Random extrude option. Blender in the background goes around and assigns a color to each basically enclosed space (like a paint bucket tool) and extrudes based on that value instead. Using a min-max option of course. Min: .5 Max: 1 the minimum grey will then be a 50 percent grey material that would be medium height and the max will be white/whatever you set height to be.

I know it would probably kill coders but it is just a notion. I think this has a lot of potential and would be better than displacement in some scenarios. Even in some scenarios could save using displacement. Rendering faster and saving on memory. I know figuring out artifacting and such will be the biggest issue with this but you guys did pretty good with booleans this shouldn't be entirely out of the realm of possibility for you. You guys basically have this as part of one of your extrude tools even.