基于加权系数的插值算法研究

Research of an Interpolation Algorithm Based on Weighted Coefficient

插值运算作为一种标准的运算方法在图像处理领域,尤其是在图像的放大、旋转和卷积处理过程中有着广泛的应用。插值核的选取要考虑到计算速度和数学精度的要求。在本文中,提出了一种新的插值算法,引入8个加权系数,通过它们可以得到一个加权公式。通过软件编程实现该算法,以此算法处理后,图像效果得到了较为显著的改进,并且可有效减轻图像边缘锯齿现象。

As a standard operation method, Interpolation has been used widely in image processing, especially in magnification, rotation and convolution of images. Choosing an interpolation kernel to obtain an acceptable result of reconstruction needs to consider computational speed and mathematical precision. In this paper, a new method for interpolation was put forward. Eight weighted coefficients were introduced which can be used to get a weighted formula. This algorithm was carried out with software program and improved the reconstructed image＇s quality and avoids the crenellated phenomena to the maximum extent.