TM遥感影像彩色合成最佳波段组合研究——以恩施市土地利用遥感图制作为例

Research on the Optimal Bands Combination to Composite Pseudo Color Image of TM Image: Taking Land Use Mapping of Enshi County as a Case Study

TM遥感数据具有适合于中等尺度研究的空间分辨率,并相对易于获取,在土地变化研究中应用最为普遍.TM遥感数据为多光谱数据,最佳波段选取是遥感图像增强处理的关键部分,直接影响到目视解译和研究对象的信息提取.采用OIF指数法确定恩施市2000年TM遥感数据的最佳波段组合,完成土地利用遥感图制作.研究结果表明,OIF指数法易于操作,确定最佳波段组合效果较好.

TM remote sensing data has a spatial resolution suitable to medium-scale study and it is relatively easy to acquire,so it is applied most common in land change research.As multi-spectral data,optimal band selection of remote sensing data is the key issue of image enhancement,directly affecting the visual interpretation and the information extraction.In this paper,OIF index method was taken to determine the optimal bands combination to complete the land use Mapping based on TM remote sensing data of 2000.The results show that,OIF index method is easy to operate and has good effect to determine the optimal bands combinationl.