使用JavaCV在Java中使用OpenCV语句的等效项

Question

我想知道如何使用JavaCV在OpenCV中构造以下C++语句:

float* p = (float*)cvGetSeqElem(circles, i);
int radius = cvRound(p[2]);

使用cvHoughCircles()检测圆的半径.显然Java不使用指针,所以我不知道如何在Java中这样做.到目前为止我的代码所以你可以看到它的上下文:

lines = cvHoughCircles(frame2, storage, CV_HOUGH_GRADIENT, 1, 50, 300, 60, 10, 600);
for (int i = 0; i < lines.total(); i++) {
    //Would like the code to go here
    CvPoint2D32f point = new CvPoint2D32f(cvGetSeqElem(lines, i));
    cvCircle(src, cvPoint((int)point.x(), (int)point.y()), 3, CvScalar.WHITE, -1, 8, 0);
    Point p = new Point((int)point.x(), (int)point.y());
    points.add(p);
}

Answer 1

JavaCPP将C/C++数组/指针映射到Pointer对象,因此我们可以像在C/C++中一样访问它,即:

FloatPointer p = new FloatPointer(cvGetSeqElem(circles, i));
int radius = Math.round(p.get(2));