Image data as a sine wave?

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Philip
Philip on 14 May 2012
Does anybody know if it is possible to represent image data as a sine wave?

Answers (1)

Image Analyst
Image Analyst on 14 May 2012
More info is needed. I can represent an image by a lot of sine waves - that's what its Fourier transform is.
  3 Comments
Walter Roberson
Walter Roberson on 14 May 2012
fft() would seem to be appropriate. Just watch out for the fact that the output of fft() will very likely be complex.
Philip
Philip on 17 May 2012
Thanks, I've been looking at using the output of FFT and I think it's a good way to go. Do you know how I can use the stepinfo() function on the image data, such that it can tell me the overshoot, undershoot and settling time? The document says that the input data must be a Transfer Function, but I am not sure how to compute this from the spatial pixel values...

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