【摘要】 小波图像去噪方法是现代图像处理中的重要组成部分,小波基的不同选取直接影响到去噪的效果. 本文在全局阈值的标准下,通过对噪声水平和图像纹理特征的估计,讨论了小波基的正交性和线性相位性对去噪结果的不同影响,提出了选取小波基的近似标准.更多还原

【Abstract】 The wavelet image denoising is an important part of modern image processing, The selection of different wavelet basis will cause different results of denoising. So we discuss how the difference of orthogonal and linearity of wavelet effect the image denoising. In the case of universal threshold by estimating the amount of noise and texture of image, bring forward an criterion to select the wavelet basis for image denoising.更多还原