CAJ | 학술논문

针对传统的各向异性扩散去噪方法存在的导致图像细节丢失的问题,提出了一种基于平稳小波域的各向异性扩散图像去噪方法.该方法根据平稳小波变换的特性,通过在高频和低频子带上选用不同的梯度门限进行各向异性扩散,然后进行重构得到去噪后的结果图像.实验结果表明,该方法在有效去除噪声的同时,图像细节保留较好,去噪后的图像具有更好的质量.
침대전통적각향이성확산거조방법존재적도치도상세절주실적문제,제출료일충기우평은소파역적각향이성확산도상거조방법.해방법근거평은소파변환적특성,통과재고빈화저빈자대상선용불동적제도문한진행각향이성확산,연후진행중구득도거조후적결과도상.실험결과표명,해방법재유효거제조성적동시,도상세절보류교호,거조후적도상구유경호적질량.
Aiming at the detail losing problem caused by traditional space-based anisotropic diffusion,a new method of stationary wavelet-based anisotropic diffusion is purposed.Based on the character of stationary wavelet transform,anisotropic diffusion is applied in different sub-bands with different gradient threshold.Denoised image is reconstructed by diffused sub-bands.The experiment results show that this method is able to achieve a good effect in noise removal and detail preservation.