order.pde

import java.util.Map;

PImage img;
float line_size = 30;
float space = 20;
int sf=0;
float frame = 0;
void setup() {
  size(700, 700);
  img = loadImage("/home/bgola/fotos/me/mequadrado2.jpg");
  
  img.resize(width, height);
}

void draw() {
  background(0);
  loadPixels();
  float[] lines = new float[height];
  float[] lines_sorted = new float[height];
  HashMap<Float,Integer> hm = new HashMap<Float,Integer>();
  float n = 0;
  for(int i=0; i<height; i++) {
    float total=0;
    for (int j=0; j<width; j++) {
      color c = img.get(i, j);
      total += brightness(c);
    }
    float mean = total / width;
    lines[i] = mean;
    hm.put(mean, i);
  }
  lines_sorted = sort(lines);
  for (int l=0; l<height; l++) {
    int line = hm.get(lines_sorted[height-l-1]);
    for (int x=0; x<width; x++) {
      int pixel = width*x+l;
      //pixels[pixel] = color(brightness(img.get(line, x)));
      pixels[pixel] = img.get(line, x);
    }
  }
  updatePixels();
}

void keyPressed() {
  if (key == 's') {
    save("me.jpg");
  }
}