Fusion of Multi-focus Images Based on the Nonsubsampled Contourlet Transform
In recent years, image fusion has become a hotspot of image processing. This paper presents a multifocus image fusion method based on Nonsubsampled Contouriet transform. Firstly, taking Nonsubsampled Contourlet transform for two pairs of source images respectively to get a lowfrequency sub band and a number of high-frequency sub-band direction, and then taking fusion rules of the mean energy of direction contrast and local entropy for high-low-frequency sub-band respectively to select the corresponding coefficient. Finally, fuseing image obtained through the inverse transform. The proposed method, discrete wavelet transform, atrous wavelet transform and a simple method of nonsubsampled contourlet transform are compared in this experiment. The results show that fusion of the proposed method is the best of all.
image fusion Nonsubsampled Contourlet transform(NSCT) atrous wavelet transform local entropy
Wang Xinchun Hong Ming Yue Kaihua
Department of Physical and Electronics CNU Chuxiong, China Department of Communication Engineering YNU Kunming, China
国际会议
长沙
英文
1524-1528
2010-05-11（万方平台首次上网日期，不代表论文的发表时间）