Write code in MATLAB Use any portrait head photo. Use photo manipulation to get

Question

Write code in MATLAB Use any portrait head photo. Use photo manipulation to get gray scale image: you may use any matrix size, such as 512 times 512: you may use integer to represent gray scale. 1) Write a matlab code to read the image, apply Fourier transformation to generate a k-space complex image of your face with frequency range [-k_max, k_max] in both kx and ky axes. Then, 2) Null the data inside [-k_max/4, k_max/4] along both axes in k-space, ie, set k-space signal values inside the central square [-k_max/4, k_max/4] to zero. Then inverse Fourier transform back to image space.

Explanation / Answer

This is a vectorized version of the same code:

Using vectorization, you can write a much more concise MATLAB process. This code shows one way to accomplish the task:

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