Removing pixels

lki92

Hi, how can I remove pixels which are over a certain rangre(RGB) from an image?

_vk

What do you mean by remove?

lki92

I am doing blob detection for skin detection. I would like to ignore pixels with RGB values that are outside of the expected range for pixels belonging to the skin.

TfGuy44

???

void setup() {
  size(400, 400);
  background(0);
  noStroke();
  for (int i=0; i<20; i++) {
    fill(random(255), random(255), random(255));
    rect(random(width), random(height), random(width), random(height));
  }
}

void draw() {
}

void mousePressed() {
  loadPixels();
  for (int i=0; i<pixels.length; i++) {
    if (red(pixels[i]) > 128){
      pixels[i] = color(0);
    }
    else if (green(pixels[i]) > 128){
      pixels[i] = color(255);
    }
    else if (blue(pixels[i]) < 128){
      pixels[i] = color(128);
    }
  }
  updatePixels();
}