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采用a’trous小波与HIS变换相结合的方法对Aster多光谱影像和资源二号全色影像进行融合实验和评价,并与传统的HIS变换和小波变换融合方法加以对比。结果表明:a’trous小波与HIS变换相结合的融合效果最好,吸取了两种单一融合方法的优点,不仅较大程度上提高了原始影像的空间细节表达能力,而且很好地保留了原始影像的光谱信息,为遥感应用提供了更精确的数据。
A combination of a’trous wavelet and HIS transform was used to evaluate the fusion of Aster multi-spectral image and resource II panchromatic image, and compared with the traditional HIS transform and wavelet transform fusion method. The results show that the combination of a’trous wavelet and HIS transform has the best fusion effect, and draws on the merits of two single fusion methods, which not only improves the spatial detail expression ability of the original image to a great extent, but also retains the original Spectral spectral information for remote sensing applications provide more accurate data.