How to transform image like warp

[yycking]

I want to warp image from qt like potoshop.
3962
but I did not have any idea
Any one can help me

[wysota]

http://www.google.com/search?q=image+warp+algorithm

[yycking]

http://www.google.com/search?q=image+warp+algorithm
Thanks wysota
You're a Good Man