how to plot frequency vs log intensity of a 2D image?
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The graph should appear as shown in the figure given
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Image Analyst
le 26 Fév 2014
Call fft2 on your image. Take the real part or call abs(). Then take the log and call
imshow(logImage, []);
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Image Analyst
le 10 Mar 2014
Sansri, I just copied and pasted and it worked fine. It produced this:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/178027/image.jpeg)
I don't know why you are expecting a graph. It makes an image, not a graph. What did you do to my code to make it not work? You must have done something else besides just copying and pasting that code.
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