摘要
在图像去噪处理中 ,采用小波阈值去噪法会产生马赛克现象 ,造成图像失真 .为此作者提出了利用指数函数处理小波系数的去噪方法 ,可以保证在与阈值去噪法获得同样信噪比条件下 ,减轻马赛克现象 ,并利用超声
In image denoising, the wavelet threshold denoising can lead to mosaic problem and image distortation. Hence, a denoising method using wavelet coefficients with exponential function is suggested, decreasing mosaic problem on the condition of obtaining the same signal to noise ratio as the wavelet threshold denoising, and its effectiveness is shown with some practical examples by adhesive detective image received through ultrasonic C scanning.
出处
《测试技术学报》
2003年第2期114-117,共4页
Journal of Test and Measurement Technology
基金
山西省青年科技研究基金项目 ( MZ2 0 0 10 70 2 )
