Digital_image_processing_DFT

Practicing Fourier Transormation on digital images and sound wave.

This project has two parts:

• Use Fourier Transformation on a blurred image 'Camblurred.jpg' and get rid of the noise in the frequency domain.
  • The code is mainly contained in:
    • forierCamblurred.m

Original image:

Processed:

• Use Fourier Transformation on a phone touch tone sound 'touchtone.wav' to recognize the numbers that are pressed on the frequency domain.
  • The code mainly contained in:
    • toneDFT.m
    • fourierTouchtone.m

Touch tone and frequency: Freqency for all numbers: