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96 lines
2.1 KiB
Plaintext
Executable File
96 lines
2.1 KiB
Plaintext
Executable File
// Original: http://www.openprocessing.org/sketch/145401
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// adaptation to images, Tomasz Sulej, generateme.blog@gmail.com
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// Licence CC-BY-SA 3.0
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// put image filename here:
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String imagefilename = "test.jpg";
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// choose channel
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int channel = HUE;
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// run, after 30 iterations result will be saved automatically
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// or click mouse when ready
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/////////////////////////////////////
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// channels to work with
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final static int RED = 0;
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final static int GREEN = 1;
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final static int BLUE = 2;
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final static int HUE = 3;
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final static int SATURATION = 4;
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final static int BRIGHTNESS = 5;
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final static int NRED = 6;
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final static int NGREEN = 7;
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final static int NBLUE = 8;
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final static int NHUE = 9;
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final static int NSATURATION = 10;
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final static int NBRIGHTNESS = 11;
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int n=2000;
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float [] cx=new float[n];
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float [] cy=new float[n];
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PImage img;
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int len;
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void setup() {
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img = loadImage(imagefilename);
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size(img.width,img.height);
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len = (width<height?width:height)/6;
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background(0);
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for (int i=0;i<n;i++) {
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cx[i]=random(width);
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cy[i]=random(height);
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}
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smooth(8);
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strokeWeight(0.3);
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}
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int tick = 0;
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void draw() {
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for (int i=1;i<n;i++) {
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color c = img.get((int)cx[i], (int)cy[i]);
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stroke(c);
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point(cx[i], cy[i]);
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// you can choose channels: red(c), blue(c), green(c), hue(c), saturation(c) or brightness(c)
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cy[i]+=sin(map(getChannel(c),0,255,0,TWO_PI));
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cx[i]+=cos(map(getChannel(c),0,255,0,TWO_PI));
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}
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if (frameCount>len) {
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frameCount=0;
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println("iteration: " + tick++);
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for (int i=0;i<n;i++) {
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cx[i]=random(width);
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cy[i]=random(height);
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}
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if(tick == 30) saveFrame("res_"+(int)random(10000,99999)+"_"+imagefilename);
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}
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}
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float getChannel(color c) {
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int ch = channel>5?channel-6:channel;
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float cc;
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switch(ch) {
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case RED: cc = red(c); break;
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case GREEN: cc = green(c); break;
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case BLUE: cc = blue(c); break;
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case HUE: cc = hue(c); break;
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case SATURATION: cc = saturation(c); break;
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default: cc= brightness(c); break;
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}
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return channel>5?255-cc:cc;
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}
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void mouseClicked() {
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saveFrame("res_"+(int)random(10000,99999)+"_"+imagefilename);
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}
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