LingDong-

/** Finding contours in binary images and approximating polylines.
 *  Implements the same algorithms as OpenCV's findContours and approxPolyDP.
 *  <p>
 *  Made possible with support from The Frank-Ratchye STUDIO For Creative Inquiry
 *  At Carnegie Mellon University. http://studioforcreativeinquiry.org/
 *  @author Lingdong Huang
 */
var FindContours = new function(){let that = this;
  
  let N_PIXEL_NEIGHBOR = 8;