DirectX Tool Kit (aka DirectXTK) is a collection of helper classes for writing Direct3D 11 code for Metro style apps, Windows 8 Desktop, and Windows 7 'classic' applications in C++.
Features:
http://directxtk.codeplex.com/
DirectXTex is a shared source library for reading and writing DDS files, and performing various texture content processing operations including resizing, format conversion, mip-map generation, block compression for Direct3D runtime texture resources, and height-map to normal-map conversion. This library makes use of the Windows Image Component (WIC) APIs. It also includes a simple .TGA reader and writer since this image file format is commonly used for texture content processing pipelines, but is not currently supported by a built-in WIC codec.