Point
January 7th, 2016 — 8 min read
I made this in June of 2014. I was using processing (a java library) to make mosaic and pointillism style images from existing pictures.
Cloud
Generated circles are semi-uniformly distributed (small deviations from initial lattice)
Lake
Using randomly placed circles of roughly equal diameter
Video showing shrinking polygons to reduce uncovered spots. I just realized this is the same concept of simulated annealing.
Watch a video
Fruit
Randomly placed quadrilaterals
Jaguar
Using small polygons and larger polygons
Another Jaguar
Random circles
White and Pink
Watch a video
Source:
java
PImage bg;
String img;
float min;
float max;
int shape;
boolean draw;
float t = 5;
boolean recording = false;
boolean progressive = false;
void setup() {
size(1600,900); // source image resolution
img = "lake.png"; // source image name
bg = loadImage("./images/" + img); // source image directory
imageMode(CENTER);
background(0);
min = 1; // minimum shape size
max = 8; // maximum shape size
shape = 0; // 0 circle, 1 quad
draw = true; // use mouse to color in
recording = false; // output movie frames
progressive = false; // simulated annealing
}
void draw() {
if (progressive) {
t += 20;
max = 50000./t;
println(50000./t);
}
for (int i=0; i<500; i++) {
if (shape == 0) {
if (draw) {
// for hand drawing
int x = mouseX;
int y = mouseY;
int dx = abs(x-pmouseX);
int dy = abs(y-pmouseY);
float speed = sqrt(dx*dx+dy*dy);
noStroke();
color c = bg.get(x,y);
fill(c,128);
ellipse(x,y,sqrt(speed*2),sqrt(speed*2));
}
else {
int x = int(random(bg.width));
int y =int(random(bg.height));
x -= x%min;
y -= y%min;
int r = int(random(max-min)+min);
noStroke();
color c = bg.get(x,y);
fill(c,128);
ellipse(x,y,r,r);
}
}
if (shape == 1) {
int x = int(random(bg.width));
int y =int(random(bg.height));
noStroke();
color c = bg.get(x,y);
fill(c,128);
quad(x-int(random(max-min)+min),y-int(random(max-min)+min),x+int(random(max-min)+min),y-int(random(max-min)+min),x+int(random(max-min)+min),y+int(random(max-min)+min),x-int(random(max-min)+min),y+int(random(max-min)+min));
}
}
if (recording) {
saveFrame("./images/movie/frames####.png"); // output frame
}
}
void keyPressed() {
if (key == 'r' || key == 'R') {
recording = !recording; // flag to save frames for animation
}
if (key == 'p' || key == 'P') {
saveFrame("./images/Capped-" + img); // output image
}
}
