alright so I'm new to processing. I'm working on a project that is going to require some motion tracking or blob tracking. basically I have a drawing function just drawing text randomly using the mouse. what I want is to be able to use tracking to draw with my hand or body etc. In experience what is the best library available to do such a thing? here is the code I'm using. It's just a beginning sketch I'm using in order to figure out this tracking.

1. void setup() {
         size(1280, 480);
         background(0);
       }
   
       void draw() {
         if (mousePressed) {
           fill(0);
        
         } else{
           fill(random(255),random(255),random(255),(255));
           int cCode = int(random(97, 122));
           char c = char(cCode);
           text(c, mouseX, mouseY);
           textSize(60);
         }
       }