Study Of Shadow Processing's Method In High-spatial Resolution RS Image

With the development of RS, high-spatial resolution RS image was used widely and widely. Shadow is one of problem of high-spatial resolution RS image, it brings many difficulties to image processing, and it doesn't ensure the precision of image recognition and classify. So how to minimize or removal the effect of shadow is one of important problem in RS image processing.In high-spatial resolution RS image, shadow processing includes shadow detection and shadow removal. In this paper, I studied some main methods of shadow detection and shadow removal and introduced detailedly each method's principle, characteristic and realization steps. And I gave a method of shadow removal based on Wallis filtering and proved correlative methods were effective.The feature of this paper is that we only deal with shadow area in RS image processing, so we can as possible as keep the facticity of original RS image.