how to do image morphing as in FatBooth app - iPhone

I want to build a similar app as fatbooth and want some ideas on how to do this. I googled for Image morphing 开发者_开发技巧in iPhone but didn't find anything. Should I use some server side language to morph Image?

Any help would be much appreciated!

Thanks Saurabh

The only language you can really use is C# or c++. the maths is very complicated although I am sure you can get a book or two that cover image manipulation. I don't know if there is an open source morphing framework, but that is your best option - it doesn't have to be specific to the iPhone, but the integration will be hard.

I don't know what you mean about server side, unless there is a server you know of that does it and you want a wrapper around it

For starters, take a look at displacement mapping: http://www.imagemagick.org/Usage/mapping/

Basically, you use grayscale images to bloat/shrink/squeeze/etc parts of a person's face. I made an app called FaceCraze which had to implement a poor man's FatBooth as part of the face transformation, and I used grayscale images very similar to the examples in http://www.imagemagick.org/Usage/mapping/#spherical

edit: You can use the ImageMagick library in your iOS apps too: Link