Infrared Image Processing Method Based on Nonsubsampled Contourlet Transform
An advanced method for infrared image according to the existed NSCT denoising and enhancement algorithm had been formulated. Firstly, this method performed a logarithmic transform to convert the multiplicative speckle noise into additive noise, and then perform the nonsubsampled contourlet transform. We classified the coefficients to three types according to the mean value, then modified the coefficients via the threshold predefined. The results show that this method not only can eliminate the noise, but can enhance the contours of infrared image effectively, and obtaining better visual result and higher PSNR over other methods.
Nonsubsampled contourlet transform Image denoising Thresholding
LIU Jing SUN Jiyin ZHU Junlin XIA Jing
Xian Research Inst. of High-tech, Xian, 710025
国际会议
北京
英文
2007-08-05（万方平台首次上网日期，不代表论文的发表时间）