# File lib/gd2/image.rb, line 610
    def uncrop!(x1, y1 = x1, x2 = x1, y2 = y1)
      ptr = self.class.create_image_ptr(x1 + width + x2, y1 + height + y2,
        alpha_blending?)
      SYM[:gdImageCopy].call(ptr, image_ptr, x1, y1, 0, 0, width, height)
      init_with_image(ptr)
    end