I know how to compute the 1D FFT (and interpret values from 0 to Nyq). When computing the 2D FFT, do we compute the FFT of row then the FFT of row then the FFT of row up to the last row. And then compute the FFT of col col for each of columns across ? But to report the RESULT of the 2D FFT ( do we report the complex value of each final row from col to col[N/2] for each row from top to bottom ?
What INFO does the 2D complex FFT result convey ?