获取与OpenCV交叉的图像坐标 [英] Get coordinates of images intersection with OpenCV

问题描述

在这个答案中描述了如何从两个图像中获取图像，因此交叉（它们的共同部分）将被涂成黑色 - https：/ /stackoverflow.com/a/31258083/4767232

In this answer described how to get picture from two images so intersection (common part of them) will be coloured black — https://stackoverflow.com/a/31258083/4767232

我怎样才能将此结果视为图片而作为矩形（例如，左= 100，上= 50，下= 200，右= 300）？

How can I get this result not as picture but as a rect (e.g. left=100, top=50, bottom=200, right=300)?

推荐答案

可以获得交叉点的位置通过 H 矩阵转换零点。

The position of intersection can be obtained by transforming zero point by the H matrix.

val p0 = MatOfPoint2f(org.opencv.core.Point(0.0, 0.0))
val result = Mat()
Core.transform(p0, result, H)

（并且获得矩形的大小是微不足道的）

(and getting size of the rect is trivial)

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