Image denoising by median filter in wavelet domain

Understand

The details of an image with noise may be restored by removing noise through a suitable image de-noising method.

• In this research, a new method of image de-noising based on using median filter (MF) in the wavelet domain is proposed and tested.
• Various types of wavelet transform filters are used in conjunction with median filter in experimenting with the proposed approach in order to obtain better results for image de-noising process, and, consequently to select the best suited filter.
• Wavelet transform working on the frequencies of sub-bands split from an image is a powerful method for analysis of images.