docs: function crop_none(options) {
      var w = options.source.w;
      var h = options.source.h;
  
      //set the AOI to the full image
      options.source.aoi = {
          x: 0,
          y: 0,
          w: options.source.w,
          h: options.source.h
      };
  
      //the use one of the AOI modes, doesn't matter which one.
      return crop_aoi_coverage(options);
  }