Apply a smoothing operation to the original image $($ct$2.$jpg$)$ in the frequency domain $($i$.$e$.$ use $2-$D Fourier transform$).$ Please do a Frequency domain smoothing whose level of smoothing is similar to that of the spatial filtering applied in Problem $3.$ Plot the images before and after applying your frequency domain filtering, and all relevant results at each intermediate step using MATLAB $($Please checking work in MATLAB$)$