基于有理样条的图像缩放算法

Image Zooming Based on Rational Interpolatory Spline

摘要: 提出基于双三次有理插值样条模型的图像缩放算法.用有理插值样条函数将离散数字图像建成相应的连续数学模型,然后按缩放要求进行重新采样,实现图像的缩放.实验结果表明:该算法能有效地应用于数字图像的缩放处理,得到的图像轮廓清晰、边界分明,且算法简单,易于实现.

Abstract: An image zooming method using bicubic rational interpolatory spline is presented.The experimentations show that the proposed method is able to maintain clear borders of source images and the algorithm is efficient in computation for making image zooming.