How to display and work with the imaginary part of an RGB Image

Hi,

I am new to matlab and digital image processing. Please help me to understand and work on Image processing using Matlab. Suppose, I have a RGB Image (800X600X3) and I have to perform the following: # # 1. Transform the image (FFT2) (to frequency domain) # # 2. Display the real part and imaginary part separately # # 3. Do FFTSHIFT # # 4. Re-transform the image (IFFT2) (to spatial domain)

Please help.

Thanks in advance.

Answer 1

[Image Analyst]

Did you see the real() and imag() function? You should also extract the individual color channels before you fft and inverse fft. What are you trying to do?

[BSarkar]

Hi,

Thanks for your reply. No I haven't checked the functions real() and imag(). Can you please provide me a sample code. (extract the individual color channels).

As I had told earlier that I am new to matlab and image processing. On acquiring some concepts of FFT2, I was trying to apply the same (Test case) using matlab. Also I want to work only with the imaginary part of the image keeping the real part intact.

Please help.

Thanks in advance.

[Image Analyst]

realImage = real(complexImage);
imagImage = imag(complexImage);