SpeakingX

To perform image transformation in C# (c sharp), we'll need to use GDI+ of windows.
GDI+, supersedes GDI, is an improved 2D graphics environment. Graphics Device Interface (GDI) is one of the three core components or "subsystems" of Microsoft Windows. However, for games that need fast graphics rendering and rasterization for 3D, DirectX or OpenGL is preferred.

To use GDI+, you need to use System.Drawing namespace in C#.