Hi guys,

I have the following code from Sadowski

I read from somewhere that the following source code just inverts the hue, but the saturation and brightness unchanged!!

float s = saturation(invert.pixels[i]);

1. PImage orig, gray, invert;
2. boolean inverted = false;
3. void setup() {
     orig = loadImage("516031.JPG");
     size(orig.width,orig.height);
     gray = new PImage(orig.width,orig.height);
     gray.copy(orig,0,0,orig.width,orig.height,0,0,orig.width,orig.height);
     gray.filter(GRAY);
     invert = new PImage(orig.width,orig.height);
     invert.copy(orig,0,0,orig.width,orig.height,0,0,orig.width,orig.height);
     invert.filter(INVERT);
     colorMode(HSB);
     invert.loadPixels();
     for (int i = 0; i < invert.pixels.length; i++) {
       float h = hue(invert.pixels[i]);
       float s = saturation(invert.pixels[i]);
       float b = brightness(invert.pixels[i]);
       invert.pixels[i] = color(h, 255, 255);
     }
   }
4. void keyPressed() {
     inverted = !inverted;
   }
   void draw() {
     image(inverted ? invert : gray,0,0);
     fill(0);
     ellipse(orig.width/2,orig.height/2,2,2);
   }