摘要
文章提出了一种利用Bézier插值曲面进行图像放大的方法,该方法是为数字图像的每一个色彩分量构造一个分块双三次Bézier插值C1曲面,图像放大等价于以不同的采样速率对该曲面进行采样的过程.实验结果表明,该方法可以大大改善放大图像的效果.
A method of image zoomingin is presented in this paper. It is based on Bzier interpolation surface. First, it constructs a piecewise bicubic Bzier interpolation C1 surface for each color component of a digital image, and then, samples the surface with different sampling rate to zoom in. The experimental results show that the method can improve the quality of zoomed image greatly.
出处
《软件学报》
EI
CSCD
北大核心
1999年第6期570-574,共5页
Journal of Software
基金
国家自然科学基金
国家863高科技项目基金
关键词
图像放大
BEZIER曲面
插值
像素子分
Zoom in, Bzier surface, interpolation, acceleration, pixel decompose.