code: public CalculusBuilder analyze(ImageView image) {
  
          if(image == null)
              throw new IllegalArgumentException("Image must not be null");
  
          mImage = Utils.getBitmapFromImageView(image);
  
          return new CalculusBuilder(mImage);
      }
docs: Creates a {@link com.kimo.lib.alexei.CalculusBuilder} object that will perform the operations
  using a given ImageView
  @param image that will be passed over to {@link com.kimo.lib.alexei.CalculusBuilder}
  @return a calculus builder object