An image format type with color type of HeadersOnly will not include the image facilities as part of it. This is used with loading only headers of and image format type. To decide at runtime a better color type to use.
Copyright Devisualization (Richard Andrew Cattermole) 2014 - 2017. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Common file format definitions