Real - page 5

Retrieve DFT coefficients from DCT coefficients
Is DCT real part of DFT?What is the difference between DFT and DCT?Why DCT is used instead of DFT? Is DCT real part of DFT?DCT is NOT the real part ...
Phase shift of discrete cosine transform (DCT)
What is the main difference between DCT and DFT?Why DCT is used instead of DFT?Is DCT The real part of DFT?How to calculate DCT? What is the main di...
Difference between dct and dft in image processing
The difference between the two is the type of basis function used by each transform; the DFT uses a set of harmonically-related complex exponential fu...
How to plot fft with imaginary and real part in 3d or calculate the degree of rotation
What is the real and imaginary part of FFT?How to plot magnitude of FFT in Matlab?How do you read a FFT plot?What is complex FFT? What is the real a...
Does a purely real FFT algorithm exist?
Is the FFT of a real signal real?What is a real FFT?What are the two types of FFT?How many types of FFT are there? Is the FFT of a real signal real?...