/**
- https://github.com/fiebrink1/wekinator_examples/blob/master/inputs/VideoInput/SimpleVideoInputWithProcessing_100Inputs/SimpleVideoInputWithProcessing_100Inputs.pde
- REALLY simple processing sketch for using webcam input
- This sends 100 input values to port 6448 using message /wek/inputs
**/
import processing.video.;
import oscP5.;
import netP5.*;
int numPixelsOrig;
int numPixels;
boolean first = true;
int boxWidth = 64;
int boxHeight = 48;
int numHoriz = 640/boxWidth;
int numVert = 480/boxHeight;
color[] downPix = new color[numHoriz * numVert];
Capture video;
OscP5 oscP5;
NetAddress dest;
void setup() {
// colorMode(HSB);
size(640, 480, P2D);
String[] cameras = Capture.list();
if (cameras == null) {
println(“Failed to retrieve the list of available cameras, will try the default…”);
video = new Capture(this, 640, 480);
} if (cameras.length == 0) {
println(“There are no cameras available for capture.”);
exit();
} else {
/* println(“Available cameras:”);
for (int i = 0; i < cameras.length; i++) {
println(cameras[i]);
} */
video = new Capture(this, 640, 480);
// Start capturing the images from the camera
video.start();
numPixelsOrig = video.width * video.height;
loadPixels();
noStroke();
}
/* start oscP5, listening for incoming messages at port 12000 */
oscP5 = new OscP5(this,9000);
dest = new NetAddress(“127.0.0.1”,6448);
}
void draw() {
if (video.available() == true) {
video.read();
video.loadPixels(); // Make the pixels of video available
/*for (int i = 0; i < numPixels; i++) {
int x = i % video.width;
int y = i / video.width;
float xscl = (float) width / (float) video.width;
float yscl = (float) height / (float) video.height;
float gradient = diff(i, -1) + diff(i, +1) + diff(i, -video.width) + diff(i, video.width);
fill(color(gradient, gradient, gradient));
rect(x * xscl, y * yscl, xscl, yscl);
} */
int boxNum = 0;
int tot = boxWidth*boxHeight;
for (int x = 0; x < 640; x += boxWidth) {
for (int y = 0; y < 480; y += boxHeight) {
float red = 0, green = 0, blue = 0;
for (int i = 0; i < boxWidth; i++) {
for (int j = 0; j < boxHeight; j++) {
int index = (x + i) + (y + j) * 640;
red += red(video.pixels[index]);
green += green(video.pixels[index]);
blue += blue(video.pixels[index]);
}
}
downPix[boxNum] = color(red/tot, green/tot, blue/tot);
// downPix[boxNum] = color((float)red/tot, (float)green/tot, (float)blue/tot);
fill(downPix[boxNum]);
int index = x + 640*y;
red += red(video.pixels[index]);
green += green(video.pixels[index]);
blue += blue(video.pixels[index]);
// fill (color(red, green, blue));
rect(x, y, boxWidth, boxHeight);
boxNum++;
/* if (first) {
println(boxNum);
} */
}
}
if(frameCount % 2 == 0)
sendOsc(downPix);
}
first = false;
fill(0);
text(“Sending 100 inputs to port 6448 using message /wek/inputs”, 10, 10);
}
float diff(int p, int off) {
if(p + off < 0 || p + off >= numPixels)
return 0;
return red(video.pixels[p+off]) - red(video.pixels[p]) +
green(video.pixels[p+off]) - green(video.pixels[p]) +
blue(video.pixels[p+off]) - blue(video.pixels[p]);
}
void sendOsc(int[] px) {
OscMessage msg = new OscMessage("/wek/inputs");
// msg.add(px);
for (int i = 0; i < px.length; i++) {
msg.add(float(px[i]));
}
oscP5.send(msg, dest);
}
