Image view/manipulation software

Hi All, Im in the need of a image manipulation software, something similar to ACDSee. I dont want to clone it, but i want to have something similar or better. The project will have four phases. 1) Suggest features of the software in detail. You can get ideas from other similar software like ACDSee, GIMP ([login to view URL]), etc. The outcome will be a document describing these fetures, GUI, etc. This phase will continue until we all agree with a feature set. 2) Comming up with an architecture for the software. This should be done in a language neutral way. The outcome will be a document describing it. This phase will continue until we all agree with an architecture. 3) Comming up with a detail design, which can include UML diagrams, software components/frameworks you are going to use(including opensource). For the image manupulation part i recommend using OpenCV library which is a C based library. This phase will continue until we all agree with a proper design. 4) Actual implementation. If OpenCV is used, best llanguage to implement would be C++. This phase will continue until the quality is satisfactory. 5) Creation of documentation for all modules. The software should be implemented using either C# or C++ and it needs to support followinf platforms. WindowsXP, WindowsME, Windows Vista. ## Deliverables The graphics (icons, splash screens) etc will also be created by the coder.