Chapter 8 Videobooth.js

[spaceyyy]

Where is the exercise to complete this code?

I believe the code would have to be added into the videobooth.html for a button to be pressed for an additional filter, but I couldn't
find the exercise in the book or anywhere online. Thanks in advance! Awesome book(s) by the way!!

/*

• bwcartoon is an extra filter for an exercise
  */
  function bwcartoon(pos, r, g, b, outputData) {
  var offset = pos * 4;
  if (outputData[offset] < 120) {
  outputData[offset] = 80;
  outputData[++offset] = 80;
  outputData[++offset] = 80;
  } else {
  outputData[offset] = 255;
  outputData[++offset] = 255;
  outputData[++offset] = 255;
  }
  outputData[++offset] = 255;
  ++offset;
  }