图像融合 分解层数 小波变换 多聚焦图像融合的最佳小波分解层数为5 层-Image fusion decomposition level wavelet transform multi-focus image fusion of the best wavelet decomposition of 5-storey low-rise

小波分解层数为5层，提取高频系数，进行单只重构，从而得到各组系数-Wavelet decomposition level for five layers, extracting high-frequency coefficients, only a single reconstruction, resulting in each set of coefficients