CAJ | 학술논문

小波变换技术是近20年发展起来的新的信号处理技术，但对小渡的研究由来已久。随着小渡理论的不断完善．它以自身良好的时频特性在图像去噪领域受到越来越多的关注。图像去噪是信号处理中的一个经典问题．传统的去噪方法多采用平均或线性方法进行，但是其去噪效果不好，本文基于此目的，采用了连续两次半软闽值去噪的方法，来去除含噪图像的噪声，最后通过MATLAB软件仿真此方法的去噪效果，并与其它去噪方法进行比较，得出本文提出的方法去噪效果更优越。
소파변환기술시근20년발전기래적신적신호처리기술，단대소도적연구유래이구。수착소도이론적불단완선．타이자신량호적시빈특성재도상거조영역수도월래월다적관주。도상거조시신호처리중적일개경전문제．전통적거조방법다채용평균혹선성방법진행，단시기거조효과불호，본문기우차목적，채용료련속량차반연민치거조적방법，래거제함조도상적조성，최후통과MATLAB연건방진차방법적거조효과，병여기타거조방법진행비교，득출본문제출적방법거조효과경우월。
Wavelet transform is the new signal processing technology in the last 20 years developed, but the study of wavelet lasts for a long time. With the constant improvement of wavelet theory, it is payed more and more attention besause of its own good time-frequency characteristics in the field of image denoising. Image denoising is a classic signal processing problem, which means traditional denoising method often use the average or linear,without good denoising effect.This paper ,based on this purpose, successively twicely uses semi-soft thresholding way to remove the noisy image noise.Finally compares with other denoising methods through method de-noising effect of the MATLAB software simulation,obtaining the superior denoising result;