text: /**
   * @author David Corvoysier / Copyright Orange 2013
   * 
   * Average background Subtraction
   * 
   * Parameters:
   * - alpha
   * - threshold
   *
   */
  (function(global) {
  
      global.addBGsubtractor (
          // Background Subtractor Name
          'average',
          // Mask function
          function (frameIn,fgmask,bgmodel,alpha,threshold) {
              // Use the generic colormask filter
              global.colormask(frameIn,fgmask,bgmodel,threshold);
          },
          // Update function
          function (frameIn,bgmodel,alpha,threshold) {
              // Use the generic mix function 
              global.mix(bgmodel,bgmodel,frameIn,alpha);
          }
      );
  
  })(glimp);
  