Introduction - If you have any usage issues, please Google them yourself
After various processes in a specific frequency domain filter, carried out a Fourier transform and inverse Fourier transform, which is the process of converting two spatial information is represented on the decomposition of the frequency, or frequency conversion means for space indicates, the two are mutually transform inverse transform. precisely by processing the Fourier transform of the pros and cons before making the deal with the frequency domain can be used for image enhancement