Method do_teardown

examples/neon_scale.cpp:85–92

        scale.run();
    }
    void do_teardown() override
    {
        // Save the result to file:
        if (!output_filename.empty())
        {
            save_to_ppm(dst, output_filename); // save_to_ppm maps and unmaps the image to store as PPM
        }
    }

private:
    Image       src{}, dst{};