Created
February 16, 2018 11:30
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PImage img; | |
int soglia = 90; | |
int prob = 5; | |
int counter = 0; | |
float[] distanze; | |
ArrayList<Point> punti; | |
int x1, y1, x2, y2; | |
void setup() { | |
background(255); | |
img = loadImage("IMG_3300.jpg"); | |
size(539, 700); | |
img.loadPixels(); | |
punti = new ArrayList<Point>(); | |
noFill(); | |
for (int x = 0; x < img.width; x++) { | |
for (int y = 0; y < img.height; y++ ) { | |
int loc = x + y*img.width; | |
if (brightness(img.pixels[loc])<soglia) { | |
if (random(100)<prob) { | |
punti.add(new Point(x, y)); | |
//ellipse(x,y,2,2); | |
} | |
} | |
} | |
} | |
distanze = new float[punti.size()]; | |
int iniziale = int(random(punti.size())); | |
x1 = punti.get(iniziale).x; | |
y1 = punti.get(iniziale).y; | |
} | |
void draw() { | |
if (punti.size() >= 30) { | |
int salto = 50; | |
for (int i = 0; i < punti.size (); i++) { | |
distanze[i] = dist(x1, y1, punti.get(i).x, punti.get(i).y); | |
} | |
int prossimo = int(random(punti.size())); | |
while (distanze[prossimo] > salto) { | |
prossimo = int(random(punti.size())); | |
counter++; | |
if (counter == 500000) { | |
salto = 1000; | |
counter = 0; | |
} | |
} | |
float curva = distanze[prossimo]; | |
x2 = punti.get(prossimo).x; | |
y2 = punti.get(prossimo).y; | |
line(x1, y1, x2, y2); | |
//stroke(random(0,255), random(0,255), random(0,255)); | |
//bezier(x1, y1, x1+random(-curva, curva),y1+random(-curva, curva), x2, y2, x2, y2); | |
/* | |
strokeWeight(5/log(curva)); | |
if(curva > 50) { | |
strokeWeight(0.5); | |
} | |
*/ | |
x1 = x2; | |
y1 = y2; | |
punti.remove(prossimo); | |
} | |
if(punti.size() == 30) { | |
save("Ritratto.jpg"); | |
} | |
} | |
class Point { | |
int x; | |
int y; | |
Point(int _x, int _y) { | |
x = _x; | |
y = _y; | |
} | |
} |
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