摘要
通过对木材图像进行3尺度的小波变换,在高频内判断并提取噪声点,最后对确定的噪声点进行平滑处理,用峰值信噪比、均方误差值和灰度曲线对去噪效果进行评价。研究结果表明,该方法不仅对木材图像具有明显的降噪效果,也能最大限度的保留有用的木材纹理信息,同时本文采用的灰度曲线(profile)可以直观地分析图像的去噪效果。
The author firstly treated the wood image using the three-scale wavelet transform,then judged and extracted the noise points in the high frequency image,and finally using smooth processing treated the determined noise points,which was estimated by the PSNR,NMSE and the Profile curve.The results of the research showed that,this method not only has the obvious denoising effect to the wood image,but also retained the wood texture information farthest,and at the same time we can directly analysis the image beautification effect by using denoising profile curve.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2013年第1期142-145,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
现代农牧业信息技术研究(NDPYTD2010-9)资助
