Digital Image Processing

That is one of the lecture in my subject of Photogrammetry and Remotesensing. It is very interesting. guess what? phew..! it is all about the complex mathemathic algorithm behinds the Photoshop and those similar program! hehe..it's nice to know about that anyway..now it's not magic..it's mathematics..Oh, may be i have to go and look through the GIMP source code..:)