现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
13期
72-74
,共3页
李智%张根耀%王蓓%王静%涂银莹
李智%張根耀%王蓓%王靜%塗銀瑩
리지%장근요%왕배%왕정%도은형
图像去噪%中值滤波%小波变换%均方根误差
圖像去譟%中值濾波%小波變換%均方根誤差
도상거조%중치려파%소파변환%균방근오차
image denoising%median filtering%wavelet transform%root-mean-square error
针对混合噪声的特点,提出一种中值滤波和小波变换相结合的去噪方法。首先对噪声图像进行中值滤波,然后再通过小波阈值法对噪声进行去除,达到去噪目的。最后进行了Matlab仿真实验以及客观标准评价,结果表明:这种方法改善了图像质量,去噪效果优于传统的软、硬阈值方法以及单纯的中值滤波方法,可以有效的去除混合噪声。
針對混閤譟聲的特點,提齣一種中值濾波和小波變換相結閤的去譟方法。首先對譟聲圖像進行中值濾波,然後再通過小波閾值法對譟聲進行去除,達到去譟目的。最後進行瞭Matlab倣真實驗以及客觀標準評價,結果錶明:這種方法改善瞭圖像質量,去譟效果優于傳統的軟、硬閾值方法以及單純的中值濾波方法,可以有效的去除混閤譟聲。
침대혼합조성적특점,제출일충중치려파화소파변환상결합적거조방법。수선대조성도상진행중치려파,연후재통과소파역치법대조성진행거제,체도거조목적。최후진행료Matlab방진실험이급객관표준평개,결과표명:저충방법개선료도상질량,거조효과우우전통적연、경역치방법이급단순적중치려파방법,가이유효적거제혼합조성。
Aiming at the characteristics of mixed noise,a de-noising method of combining median filtering and wavelet transform is presented in this paper. Firstly,the median filtering is adopted for noisy images,and then the wavelet threshold method is used to remove the noise. Matlab simulation experiment and objective evaluation were performed. The results demon-strate the denoising effect of this method is better than those of traditional soft-hard threshold method and median filtering method, can improve the image quality,and eliminate the mixed noise of images effectively.