摘要
对Scaler中常用的三种图像缩放内插算法(最邻近内插,双线性内插和双立方内插)进行了比较研究,提出了基于抗混叠滤波器的内插算法的优化方案。针对缩放比例较大情况下出现的严重混叠现象,该方案可以起到抗混叠作用。实验表明了方案的有效性,并进一步表明优化后的双线性内插算法更具可行性。
This paper focuses on three basic interpolation methods widely used in Scaler, including nearest neighbor interpolation, bi-linear interpolation and bi-cubic interpolation. By analyzing and comparing these different methods, it proposes modified interpolation methods based on anti-aliasing filter. The solution can effectively reduce the aliasing effect which is serious in the case of large scaling ratio. The experimental results confirm the validity of the solution and show that the modified bi-linear interpolation is the most practical method among three.
出处
《信息技术》
2009年第11期1-4,共4页
Information Technology
基金
上海-应用材料研究与发展基金(08700740700)
