Aiming at the deficiencies of soft threshold function and hard threshold function in traditional wavelet threshold denoising algorithm,a new threshold function is created based on the existing threshold function in literatures.This function can overcome the disadvantages of soft and hard threshold functions,and have better flexibility in denoising.Through Matlab simulation,the denoising effects of soft and hard threshold function and the proposed function were compared in the SNR and RMSE.The simulation results indicate that the proposed function can get a higher SNR and smaller RMSE in denoising,and has a very good denoising effect.
参考文献
相似文献
引证文献
引用本文
江虹,苏阳.一种改进的小波阈值函数去噪方法[J].激光与红外,2016,46(1):119~122 JIANG Hong, SU Yang. Denoising method based on improved wavelet threshold function[J]. LASER & INFRARED,2016,46(1):119~122