The atmospheric correction for remote sensing images is absolutely necessary for improving the precision of data pre-processing.The FLAASH and 6S are used as the atmospheric correction models.The SPOT5 remote sensing image is used as the original data to analyze the precision of atmospheric correction.In order to evaluate and validate the correction results,we use the object spectral response curves and NDVI profile curve to analyse the original images and the images after atmospheric correction.As a result...