| With the continuous progress of computer and remote sensing technology, the methods of imagery interpretation are also developing, but visual interpretation is still an important means. How to choose three optimal bands to composite colorful image is a meaningful research topic. In this paper, we analyzed the band features of ETM+ multispectral imagery and common band combination firstly, then we applied various methods to analyze ETM+ imagery of Shunde district, such as statistical characteristic of single band,correlation coefficient matrix between bands, optimum index factor, joint entropy, characteristics spectral curve for typical objects. Finally six assignment schemes of color channel were tested repeatedly. Experimental results showed that bands combination of band 5(Red), band 4(Green), band 3(Blue) is the best for ETM+ multispectral imagery in Shunde district where is a typical Pearl River Delta river plain area. |
