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矩形变换为圆

于 2023-08-17 发布 文件大小:27.25 kB
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matlab练习程序(矩形变换为圆),最近对图像坐标的变换很感兴趣啊,这次是将一张图像变换为圆形。变换原理就是按变换前后像素到圆心的距离按比例缩减就行了。改变x,y方向上的系数,应该还可以变换为椭圆,不过我还没有尝试。注意我这里相当于缩小图像了,所以用的是正向插值,如果想生成一个大圆,还是需要逆向插值的。

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