maketform help

[Victor Lee]

Hi,

Need a little help in image transformation. I've acquired my six-parameter affine coef and created a transformation matrix using maketform. I know I can use the imtransform to warp my image(forward warping) then but how do I perform an backward warping?? Correct me if I get any theory wrong.

th =
0.8038 0.0054 0
0.1223 0.9398 0
-11.7433 7.4572 1.0000

MF = maketform('affine',th);
img1 = imtransform(img, MF);

Thanks
Victor

[Steve Eddins]

Try using fliptform.

---
Steve Eddins
http://blogs.mathworks.com/steve/

[Victor Lee]

Steve Eddins <Steve....@mathworks.com> wrote in message <hmljpm$cdh$1...@fred.mathworks.com>...

Thanks Steve. I've tried it. How do I use the inverse function for the 'maketform' function? MATLAB help does says it has but no examples how to apply it.

Thanks