1. import codeanticode.gsvideo.*;
2. //*** And this was the Motion tracking source I was planning to base it on.  I also have a version using JMyron and another that takes one reference capture and compares all future frames to that capture.
3. float sensitivity; // sensitivity is a percentage of pixels changed
   boolean newFrame; // switch var for determining when a new frame is received
   color[] prevFrame; // vars for holding the current and previous frames
   GSCapture video;
4. void setup(){
     size(320,240);
    
     sensitivity=0.24;
     newFrame=false;
     stroke(240);
     noFill();;
     prevFrame=new color[320*240];
     video = new GSCapture(this, width, height, 30);
     //frameRate(30);
   }
5. public void videoEvent(){
     newFrame=true;
   }
6. void draw(){
    
     if(video.available()){
       video.read();
       newFrame=false;
       image(video, 0, 0, width, height); // update display with current frame
       for(int y=0; y<30-1; y++){ // loop through video in 40x30 grid
    for(int x=0; x<40-1; x++){
      // println(mtc++);
      int cxLoc=x*(320/40); // x position on grid
      int cyLoc=y*(240/30); // y position on grid
      
      if(motionTest(cxLoc,cyLoc,width/40,width/30)==true){
        rect(cxLoc+4,cyLoc+4,(width/40)-2,(width/30)-2); //indicate motion
      }
    }
       }
     }
   }
7. boolean motionTest(int srcX,int srcY,int tw, int th){
     int dc=0; // counter to track number of differences
     color newPixel; 
     for(int y=0;y<th;y++){
       for(int x=0;x<tw;x++){
    int srcPos=((srcY+y)*width)+(srcX+x);
    newPixel = video.pixels[srcPos];
     if(abs(red(newPixel)-red(prevFrame[srcPos]))>25) dc++;
    prevFrame[srcPos]=newPixel; // update prevFrame w/ current pixel clr
       }
     }
     // test to see if number of difference is 'significant'
     if(dc>(sensitivity*(tw*th))){ 
       return true;
     }else{
       return false;
     }
   }