In this paper the IHS transformation with the chromatic coordinate was discussed and a transformation method which can be conveniently used in the remote sensing digital image processing was designed and tested.The study results in the KUOCHANG Mountain Area of Zhejiang Province are very satisfactory. It is shown that the IHS transformation not only provides a new and effective approach for image color enhancement but also open up a new and ideal path for the combination and integrated display of various remotely sensed images and non-remotely sensed images.