用B样条的尺度关系来实现图像任意精度的放大缩小

图像的细放问题一般是采用B样条的连续显式方式来实现的，这种算法易于理解，但是随着B样条阶数的提高，编码和运算相对费时，文中提出利用B样条的尺度方程进行图像缩放的算法，该算法可对不同阶数的B样条有统一而简单的编码，通过设定不同的误差限，可以得到不同精度的缩放结果，并且计算时间可以随着不同的精度要求而得到控制。

Image Enlargement and Reduction with Arbitrary Accuracy through Scaling Relation of B-Spline

The continuous representation of B Spline is generally adopted in the algorithms of image reduction and enlargement, although the algorithm is easy to understand, it is quite expensive to implement with the increase of B Spline's order. This paper presents a new algorithm using scaling function of B\|spline wavelet to resizing image, which maintains simple and uniform coding for different order B Spline. Different accuracy of image resizing can be achieved by setting different error bound, that controls at the same time the time of computing.