Using a webcam in Processing - - First Try

By using a webcam Processing can see our world :) You can show live video in Processing, or capture single images as a photo camera would do.

Very few lines of code are needed to show a camera live feed. Just try it! :)

Type in the code - then walk yourself through each line to make sure you understand what is happening. Then try the challenges given to you in the //comments .

Step 1: Download processing video libary

Step 2: Type in Code -- try challenges

import processing.video.*;

Capture cam;

void setup() {

size(600, 300);

cam = new Capture(this, 320, 240, 30);

cam.start();

}

void draw() {

if(cam.available()) {

cam.read();

}

image(cam, random(width), random(height));

//try replacing random width and random height with a fixed place like 0,0

//try taking out mousePressed and changing it to a keyPressed

if(mousePressed){

noLoop();

}

}

Extra challenge type in this code so that the camera only gets an image of you when key pressed

void draw() {

  // nothing here

}

void keyPressed() {

  if (cam.available()) {

    cam.read();

    image(cam, 0, 0);

  }

}