A Simple and Effective Algorithm of Scaling-down Image

Scaling-down image is a basic problem in the fields of processing image,when scaling-down image,some information of image will lost and the more the image is scaled-down,the more information will be lost,which will lead to visible image distortion.In this paper,we introduce a simple and effective algorithm of scaling-down image,which will not lead to visible image distortion,especially in case of the scaling-down proportion of image is bigger.