关键词: 图像融合, 无下采样Contourlet变换, 融合规则

Abstract: A novel method of image fusion based on the nonsubsampled Contourlet transform is proposed，based on the recently developed nonsubsampled Contourlet transform，which can offer a trait of multidirection，flexible multiscale and shift-invariant simultaneity.At first，obtain the high and low frequency-coefficients by decomposing the image with the nonsubsampled Contourlet transformation.Then，according to the coefficient characters between the high and low frequency-coefficients，syncretize them by using new fusion algorithms of weighted average.The experimental results show that the new method makes a better fusion result compared with the traditional transform methods.

Key words: image fusion, nonsubsampled Contourlet transform, fusion algorithm