Processing Color Tracking Example

Final_Lab
int xval=256;
int count =0;
import processing.serial.*; // add the serial library
Serial myPort; // the serial port to monitor
void setup() {
size(1200, 612); // set the window size
println(Serial.list()); // list all available serial ports
myPort = new Serial(this, Serial.list()[0], 115200); // define input port
myPort.clear(); // clear the port of any initial junk
background(125, 125, 125);
}
void draw () {
while (myPort.available () > 0) { // make sure port is open
String inString = myPort.readStringUntil('\n'); // read input string
if (inString != null) { // ignore null strings
inString = trim(inString); // trim off any whitespace
String[] xyzaRaw = splitTokens(inString, "\t"); // extract x & y into an array
// proceed only if correct # of values extracted from the string:
if (xyzaRaw.length == 3) {
int green = int(xyzaRaw[0]);
int red = int(xyzaRaw[1]);
int xval = int(xyzaRaw[2]);
int x = int((float)xval*(512.0/1024.0));
if(green>0){
textSize(30);
fill(0, 200, 0);
text("Same face detected!", 180, 80);
println("xval=", xval);
fill(10, 200, 0); // pick the fill color (r,g,b)
ellipse(400+x, 256, 40, 40); // draw a circle
count = count +1;
if(count >20){

background(125, 125, 125);
count=0;
}
}
if(red>0){
textSize(30);
fill(200, 0, 0);
text("Can't tell if this is you!", 180, 80);
count = count +1;
if(count >5){
background(125, 125, 125);
count=0;
}
}
}
}
}
}