OpenCV的椭圆检测 [英] Ellipse detection with OpenCV

问题描述

我想用OpenCV for Android检测椭圆，使用OpenCV 2.4.1包中包含的Tutorial 2-Basic作为起点。请注意，我的椭圆将是一个完美的photoshop一个。

I would like to detect ellipses with OpenCV for Android, using the Tutorial 2-Basic included with OpenCV 2.4.1 package as a starting point. Note that my ellipse would be a perfect-photoshop one.

根据我的理解，使用HoughCircles将只找到完美

From what I understand, using the "HoughCircles" will only find perfect (or so) circles, thus leaving ellipses out.

任何帮助将非常感谢，因为我是OpenCV的初学者。

Any help would be much appreciated as I am a total beginner at OpenCV

    case Sample2NativeCamera.VIEW_MODE_CANNY: (ignore the Canny mode...)

        capture.retrieve(mGray, Highgui.CV_CAP_ANDROID_GREY_FRAME);
        Imgproc.HoughCircles(mGray, mCircles, Imgproc.CV_HOUGH_GRADIENT, 1, 20);
        Log.d("Ellipse Points", " X " + mCircles.get(1,1)[0] + mCircles.get(1, 1)[1]);

        break;

如果您认为任何更多信息对您有用，请告诉我们。

If you think any more info could be useful, please let me know.

推荐答案

您的问题的一个可能的解决方案类似于此主题在图像上检测硬币（和拟合椭圆）。

One possible solution to your problem is similar to this thread Detection of coins (and fit ellipses) on an image .

您应该看一下opencv的函数fitEllipse 。

You should take a look a opencv's function fitEllipse.

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