Hi,

I am trying to locate the brightest AND largest grouping of pixels in a live video feed via webcam. I'm just using the BrightnessTracking example from the Video(Capture)  library to find the brightest pixel, but I need to be able to locate the largest grouping of bright pixels in the video. Is this possible? code below, thanks!

/**
* Brightness Tracking
* by Golan Levin.
*
* Tracks the brightest pixel in a live video signal.
*/


import processing.video.*;

Capture video;

void setup() {
 size(640, 480); // Change size to 320 x 240 if too slow at 640 x 480
 // Uses the default video input, see the reference if this causes an error
 video = new Capture(this, width, height, 30);
 noStroke();
 smooth();
}

void draw() {
 if (video.available()) {
   video.read();
   image(video, 0, 0, width, height); // Draw the webcam video onto the screen
   int brightestX = 0; // X-coordinate of the brightest video pixel
   int brightestY = 0; // Y-coordinate of the brightest video pixel
   float brightestValue = 0; // Brightness of the brightest video pixel
   // Search for the brightest pixel: For each row of pixels in the video image and
   // for each pixel in the yth row, compute each pixel's index in the video
   video.loadPixels();
   int index = 0;
   for (int y = 0; y < video.height; y++) {
     for (int x = 0; x < video.width; x++) {
       // Get the color stored in the pixel
       int pixelValue = video.pixels[index];
       // Determine the brightness of the pixel
       float pixelBrightness = brightness(pixelValue);
       // If that value is brighter than any previous, then store the
       // brightness of that pixel, as well as its (x,y) location
       if (pixelBrightness > brightestValue) {
         brightestValue = pixelBrightness;
         brightestY = y;
         brightestX = x;
       }
       index++;
     }
   }
   // Draw a large, yellow circle at the brightest pixel
   fill(255, 204, 0, 128);
   ellipse(brightestX, brightestY, 200, 200);
 }
}