Combined with wavelet transform and mean filtering, an efficient image-denoising method was presented.Firstly, noised image was decomposed to various frequency sub-band images by wavelet transform.

• 摘要将小波变换和均值滤波相结合提出了一种有效的图像去噪方法，先将含噪图像进行小波分解，获得不同频带的子图像。