摘要
针对图像特殊变换问题,即把一个N(N>3)边形的图像变换为另一个M(M>N)边形的图像的变形,提出了一种自由拉伸的算法。在该算法的基础上进行适当的变换,不仅能实现基本的几何变换,如缩放、错切、扭曲等,还可以实现N边形的图像变换为半圆或者为N边形(边为曲线)的图像等复杂的图像变换。实验证明该算法取得了很好的效果[1]。
For the image special transformations problem,as transforming one polygons of N(N3) sides image into another polygons of M(MN) sides image,a free form stretching algorithm is presented.The algorithm can also support the basic geometric transformations,for example: shearing,etc,and the complex image transformations of the transforming the polygons of N sides image into the semicircle or the polygons of N sides(the side is curve) image.The algorithm was proved by the experiments.
出处
《计算机与数字工程》
2011年第3期131-132,167,共3页
Computer & Digital Engineering
关键词
自由拉伸
图像变换
算法
四边形
free form stretching
image transformations
algorithm
quadrangle