how to restore the original image frome Horizontal tensile version?

i have a rotated image and wanna to restore the original image, the rotated image is Horizontal tensile version of original image.i dont wanna to use the "imtransform" function and have to write the code by both bilinear and nearest neighbor . but i dont know how?!

[Image Analyst]

Why not just adapt your code here: http://www.mathworks.com/matlabcentral/answers/34102#answer_75162?

Answer 1

[Image Analyst]

Do you know the angle? If so, use imrotate(). If not, use imregister().