Image warping: Lena image smile & upset

Hi all,

                    I just wanted to know if anyone could guide me by providing some sample code in MATLAB for modifying a 2D image, like a Lena Image, smile and upset. I understand that affine transforms are used and this is done by creating a triangular mesh for the face, but am really confused in this regard. Sample code will be greatly appreciated. Thank you in advance.

best regards,
Prashanth.
prashanth_gurijalaAsked:
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foodlebardleCommented:

This note introduces the concept of image warping and treats the special case of
Euclidean warping along with a discussion of a Matlab implementation:
http://www.imm.dtu.dk/~jmc/02501/exercises/image_warping/image_warping.pdf



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