How anti-aliasing filter affects image contrast: An analysis from majorization theory perspective

@article{Tang2011HowAF,
  title={How anti-aliasing filter affects image contrast: An analysis from majorization theory perspective},
  author={Ketan Tang and Oscar C. Au and Lu Fang and Zhiding Yu and Yuanfang Guo},
  journal={2011 IEEE International Conference on Multimedia and Expo},
  year={2011},
  pages={1-6}
}
When we design an anti-aliasing low pass filter, it is usually an IIR filter. We need to truncate the filter to an FIR filter. One may think that the more taps there are, the better the image quality is. However, we find that there exists an optimal value of tap number that will give the best visual quality. Filters with larger or smaller number of taps… CONTINUE READING