基于双线性插值改进算法的图像放大技术实现

针对双线性插值算法在图像放大过程中处理图像边缘部分的不足,提出了一种新的改进算法。该算法通过分析图像的局部结构对图像分别进行插值。同质区域采用双线性插值算法,边缘区域采用基于圆形孔径的方法进行放大。此外,通过与传统算法进行比较,利用实例说明了该算法在图像处理细节部分的优越性。

An Improved Algorithm Based on Bilinear Interpolation in Image Magnification and Its Realization

This paper introduces an improved algorithm based on bilinear interpolation for image magnification. The basic idea of the al- gorithm is to partition digital images into homogeneous and edge areas based on the analysis of the local structure on the images. In order to have better performance on interpolating images, specified algorithm which is based on circular aperture is assigned to interpolate the edge areas. Experimental results show that the quality of the interpolated images is improved by using the proposed algorithm compared with that of using conventional interpolation algorithms.