Study on the Optimal Parameters of Image Fusion Based on Wavelet Transform

Selection of wavelet type, decomposition level and fusing rule is a key problem when wavelet transform is applied to image fusion. 2916 kinds of different fusing methods (54×5×9, including 54 wavelet types, 5 decomposing levels, and 9 fusing rules) are analyzed and compared in the experiment of fusing multi-focus images in this paper. Through calculating the comparability degree of fused images, the fusion performances are evaluated. And the experiment shows that the similarities of the results and the ideal pictures are all over 0.999, showing pretty good performance.