关键词: 弹性模型，曲面拟合模型，最近邻插值模型，图像放大

Abstract: To avoid the phenomenon of jaggy and blur edges during zoom image,after analyzing the nearest neighbor interpolation model and the surface fitting modcl,an image zoom algorithm was proposed based on the spring model. The interpolation formula was presented and the output results concerning on image zoom were simulated based on different algorithms. The result of experiment shows that the proposed method is able to maintain clear borders of source image and the algorithm is efficient in computation for making image zoom.

Key words: Spring model,Surface fitting model,Nearest neighbor interpolation model,Image zoom