基于非亚采样contourlet算法的数字图像融合研究

his paper first introduces the research background and significance of image fusion, then focuses on the wavelet transform method and non-subsampled controulet(NSCT) algorithm in pixel-level image fusion method, and compares non-subsampled contourlet(NSCT) algorithm with non-multiscale decomposition method in spatial domain and wavelet transform method in transform domain. Through the evaluation index of image fusion effect. MATLAB simulation experiments are carried out on the above algorithms by using the strictly registered multi-focus images, and the simulation results are compared to observe the actual effects among the five image fusion algorithms. According to various indexes, the digital image fusion algorithm based on NSCT has the best performance.