GPU PRO : Advanced rendering technique book make the source code of the articles available on the web.
From Geeks3d.com :
"To compile many of the examples you will need to install the DirectX August 2009 SDK
together with Visual Studio 2008. In the zipped file, the directory structure closely follows
the book structure by using the chapter number as the name of the subdirectory.
General System Requirements
To use all of the files, you will need:
* The DirectX August 2009 SDK
* OpenGL 1.5-compatible graphics card
* A DirectX 9.0 or 10-compatible graphics card
* Windows XP with the latest service pack; some require VISTA or Windows 7
* Visual C++ .NET 2008
* 2048 MB RAM
* The latest graphics card drivers"
For Image processing the following topics are covered
Section 5 Image Space
5.1 Anisotropic Kuwahara Filtering on the GPU by Jan Eric Kyprianidis, Henry Kang and Jürgen Döllner
5.2 Edge Anti-aliasing by Post-Processing by Hugh Malan
5.3 Environment Mapping with Floyd-Steinberg Halftoning by Laszlo Szirmay-Kalos, Laszlo Szecsi, and
5.4 Hierarchical Item Buffers for Granular Occlusion Culling by Thomas Engelhardt and Carsten Dachsbacher
5.5 Realistic Depth-of-Field in Post-Production by David Illes and Peter Horvath
5.6 Real-Time Screen Space Cloud Lighting by Kaori Kubota
5.7 Screen-Space Subsurface Scattering by Jorge Jimenez and Diego Gutierrez