How to Move Images Around Based off Position of Hand With Kinect Data?

I am working on a patch that is supposed to move various images around based off a person's hand position using Kinect data taken from a Processing code with OSC messages.

I am trying to see if a pictslider would help me achieve this. When a person's hand hovers on top of an image they should be able to use the positioning of their hand to drag it as if a mouse is dragging the image. Does anybody know if this is the best way to do this or is there a much better way?

My patch at the moment does arrange the various images on the window and can change the position of each individual image based off x and y coordinates so you can see what behavior I am describing - I've pasted my patch. I just don't know how to make it so that Max recognizes when my hand is over an image and make it follow my hand and stop following it when my hand changes to another image. Is this even possible really? Basically I want it to work like a touchscreen where certain objects on the screen only respond when "tapped" and stop functioning when "untapped."