Further, in-order to compute the power spectrum of the coatings, the FFT was also analyzed using images [4]. The advantage with this method of pre-processing the image by removing the background noise and enhancing the contrast in imageJ helped to obtain a 8-bit scale of the final images. The final result of this FFT was viewed with 𝑞 = 𝑓𝑓𝑡𝑠ℎ𝑖𝑓𝑡(𝑥) . The data obtained by using gwyddion and matlab showed same analytical results.