Hybrid Noise Reduction Algorithm Using Wavelet Transform

웨이블릿 변환을 이용한 하이브리드 방식의 잡음 제거 알고리즘

In this paper, we propose a new de-noising algorithm for 2 dimensional image using discrete wavelet transform. The proposed algorithm consists of edge detection in spatial domain, zero-tree estimation, subband estimation, and shrinkage algorithm. The results from it shows that the denoised image which Is damaged by 20% gaussian noise has 28dB quality for the original one.