envi扩展工具，包括MODIS Conversion Toolkit (MCTK)轻松实现MODIS数据坐标重投影 ，MRT(MODIS Reprojection Tool) 进行数据的提取及拼接，MRTSwath实现几何校正，均可与IDL进行影像的批处理(The envi extension tool, including the MODIS Conversion Toolkit (MCTK), easily realizes MODIS data coordinate re-projection, MRT (MODIS Reprojection Tool) for data extraction and splicing, MRTSwath for geometric correction, and can perform batch processing with IDL.)