Fusion Algorithms Comparison of SPOT-5 PAN and Multi-spectral Remote Sensing Images

With the development of remote sensing,the application of SPOT-5 data are extensive for its advantages.With the principles of image fusion methods,this paper focused on finding a proper method for fusing the panchromatic and multi-spectral images of SPOT-5 with IHS transformation,PCA resolution,Brovey transformation,multiplicative and HPF resolution.Results of different fusion methods were analyzed in terms of special resolution enhancement and spectral information maintenance.The results showed:HPF and IHS resolution had the best quality.