Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards


// Copyright 2005-2007 Adobe Systems Incorporated
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at

#include <boost/gil.hpp>
#include <boost/gil/extension/dynamic_image/any_image.hpp>
#include <boost/gil/extension/io/jpeg.hpp>
#include <boost/mp11.hpp>

// Demonstrates how to use images whose type is instantiated at run time.

int main()
    namespace gil = boost::gil;

    gil::any_image<gil::gray8_image_t, gil::rgb8_image_t, gil::gray16_image_t, gil::rgb16_image_t> dynamic_image;
    gil::read_image("test.jpg", dynamic_image, gil::jpeg_tag());

    // Save the image upside down, preserving its native color space and channel depth
    auto view = gil::flipped_up_down_view(gil::const_view(dynamic_image));

    gil::write_view("out-dynamic_image.jpg", view, gil::jpeg_tag());