Computer vision

Workshop 1

Opdracht 2F

void setup () {
  size(400, 400);
  noStroke();
  fill(225,0,0);
  ellipse(200, 50, 75, 75);
  rotate(0.35);
  fill(225,0,0);
  ellipse(265, 15, 15, 150);
  rotate(-0.7);
  ellipse(110, 150, 15, 150);
  rotate(0.35);
  fill(0,0,255);
  stroke(0);
  ellipse(200, 225, 50, 275);
}

Opdracht 2I

void setup () {
  size(400, 400);
  noStroke();
  fill(225,0,0);
  stroke(0);
  line(50, 50, 200, 200);
  line(200, 200, 300, 50);
  fill(255,255,0);
  triangle(300, 300, 50, 300, 200, 50);
  fill(0,255,0);
  rect(150, 50, 75, 75);
  strokeWeight(10);
  point(175, 100);
  point(200, 100);
}

Opdracht 2O

void drawPuppet () {
  background(255);
  noStroke();
  strokeWeight(2);
  fill(225, 0, 0);
  stroke(0);
  line(250, 200, offsetX+10, offsetY);
  line(150, 200, offsetX-10, offsetY);
  fill(255, 255, 0);
  triangle(300, 300, 50, 300, 200, 50);
  fill(0, 255, 0);
  rect(150, 50, 75, 75);
  strokeWeight(10);
  point(160 + (offsetX / 200) *18, 80 + 20 * offsetY / 400);
  point(185 + (offsetX / 200) * 18, 80 + 20 * offsetY / 400);
  fill(255);
  stroke(255,0,0);
  ellipse(offsetX, offsetY, 50, 50);
}
void setup () {
  size(400, 400);
  frameRate(60);
  drawPuppet();
}

float offsetX = 1;
float offsetY = 1;

void draw () {
  // Check if greater than 0 otherwise there will be an error because dividing by 0 seems difficult for this program
  // Computer looks dumb that way, because I can do that math easily :D
  if (mouseX > 0) offsetX = mouseX;
  if (mouseY > 0) offsetY = mouseY;
  drawPuppet();
}

Opdracht 3B

import gab.opencv.*;
import processing.video.*;
import java.awt.*;

Capture video;
OpenCV opencv;
PImage img;

void setup() {
  size(640, 480);
  video = new Capture(this, 640/2, 480/2);
  opencv = new OpenCV(this, 640/2, 480/2);
  opencv.loadCascade(OpenCV.CASCADE_FRONTALFACE);  
  img = loadImage("switch3730.png");

  video.start();
}

void draw() {
  scale(2);
  opencv.loadImage(video);

  image(video, 0, 0 );
fill(0,0,0);
  stroke(0, 0, 0);
  strokeWeight(3);
  Rectangle[] faces = opencv.detect();
  println(faces.length);

  for (int i = 0; i < faces.length; i++) {
    float w = faces[i].width;
    println(faces[i].x + "," + faces[i].y);
    rect(faces[i].x, faces[i].y + 12, faces[i].width, 12);
    //image(img, faces[i].x, faces[i].y+faces[i].height/2.8, faces[i].width, w / 702 * 443);
    
  }
}

void captureEvent(Capture c) {
  c.read();
}

Opdracht 3D

import gab.opencv.*;
import processing.video.*;
import java.awt.*;

Capture video;
OpenCV opencv;
PImage img;

void setup() {
  size(640, 480);
  video = new Capture(this, 640/2, 480/2);
  opencv = new OpenCV(this, 640/2, 480/2);
  opencv.loadCascade(OpenCV.CASCADE_FRONTALFACE);  
  img = loadImage("switch3730.png");

  video.start();
}

void draw() {
  scale(2);
  opencv.loadImage(video);

  image(video, 0, 0 );

  noFill();
  stroke(0, 255, 0);
  strokeWeight(3);
  Rectangle[] faces = opencv.detect();
  println(faces.length);

  for (int i = 0; i < faces.length; i++) {
    float w = faces[i].width;
    println(faces[i].x + "," + faces[i].y);
    //rect(faces[i].x, faces[i].y, faces[i].width, faces[i].height);
    image(img, faces[i].x, faces[i].y+faces[i].height/2.8, faces[i].width, w / 702 * 443);
    
  }
}

void captureEvent(Capture c) {
  c.read();
}

Opdracht 4B

Processing

import processing.serial.*;

Serial myPort;  // The serial port

void setup() {
  size(200, 200);
  // List all the available serial ports:
  printArray(Serial.list());
  // Open the port you are using at the rate you want:
  myPort = new Serial(this, Serial.list()[0], 9600);
}

void draw() {
  textSize(72);
  while (myPort.available() > 0) {
    String inBuffer = myPort.readString();   
    if (inBuffer != null) {
      clear();
      text(inBuffer, 80, 128);
    }
  }
}

Arduino

#include <IRremote.h>

const int RECV_PIN = 7;
IRrecv irrecv(RECV_PIN);
decode_results results;

void setup() {
  Serial.begin(9600);
  irrecv.enableIRIn();
  irrecv.blink13(true);
}

void loop() {
  if (irrecv.decode(&results)) {
    if (results.value == 16753245) { Serial.println("1"); }
    if (results.value == 16736925) { Serial.println("2"); }
    if (results.value == 16769565) { Serial.println("3"); }
    if (results.value == 16720605) { Serial.println("4"); }
    if (results.value == 16712445) { Serial.println("5"); }
    if (results.value == 16761405) { Serial.println("6"); }
    if (results.value == 16769055) { Serial.println("7"); }
    if (results.value == 16754775) { Serial.println("8"); }
    if (results.value == 16748655) { Serial.println("9"); }
    if (results.value == 16750695) { Serial.println("0"); }
    if (results.value == 16726215) { Serial.println("OK"); } 
    irrecv.resume();
  }
}