OpenCV分水岭:4点连接 [英] OpenCV Watershed : 4 point connectivity

问题描述

我正在用OpenCV编写分水岭的代码.

I am writing a code for watershed in OpenCV.

但是我希望分水岭边界是4点连接的，而不是8点.

But i want the watershed boundaries to be 4 point connected and not 8 point.

当前这是接口:

void watershed(InputArray image, InputOutputArray markers)

有人对此有解决方案吗?

Does anybody have any solution for this?

还有，有什么简单的方法可以在opencv中执行形态分水岭以实现自动过度分割，当前的方法需要用户输入?

Also, is there any simple way to perform morphological watershed in opencv for automatic over-segmentation, the current one takes user input?

推荐答案

分水岭没有明确解释该函数中使用的连接性.它只是指论文MEYER，Fernand.彩色图像分割.在:图像处理及其应用，1992年.国际会议上，. IET，1992. 303-306.

OpenCV help for watershed does not explicitly explain the connectivity used in the function. It just refers to the paper MEYER, Fernand. Color image segmentation. In: Image Processing and its Applications, 1992., International Conference on. IET, 1992. p. 303-306.

也许您必须从​​OpenCV中可用的算法开始实现自己的分水岭算法(OpenCV 2.4实现为

Maybe you have to implement your own watershed algorithm, starting from the one available in OpenCV (OpenCV 2.4 implementation is here), or creating a new one; for example the following paper describes an algorithm where the connectivity is properly highlighted:

VINCENT，Luc；皮埃尔·SOILLE.数字空间中的分水岭:一种基于沉浸模拟的高效算法. 关于模式分析和机器智能的IEEE交易，1991，13.6:583-598.

VINCENT, Luc; SOILLE, Pierre. Watersheds in digital spaces: an efficient algorithm based on immersion simulations. IEEE transactions on pattern analysis and machine intelligence, 1991, 13.6: 583-598.

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