一种基于控制点的图像变形方法

图像变形技术是IBR中的一个重要研究方向，本文首先分析了Field Morphing方法实现图像变形的原理和一般步骤，并实现了该算法。在此基础上，基于Field Morphing思想提出了利用控制点的改进算法，采用反向变换的思路，解决不同尺寸图像进行变形的控制问题，实现时利用三次卷积法较好地解决了像素变换问题。改进算法实现速度快，适应性强，是一种较实用的算法。

A METHOD OF IMAGE MORPHING BASED ON CONTROL POINT

Image morphing technolohy is a very important research direction of IBR.In this paper,we first analyze the theory and implement method of field morphing,then we program to fulfil the algorithm.Second,we give a improving algorithm by using control points which is based on field morphing.The improving algorithm use inverse direction way to solve the control problem of different size image morphing and solve the pixel transformation problem by using thrice convolution way.The improving algorithm has fast speed and strong adaptation,so it is a more practical algorithm.