Question

我创建了一个Android应用程序，它使用OpenCV的MSER algorthim实时检测文本区域，并且它的工作正常并且应该做它应该做的事情。然而，当我在不到一分钟后运行它时，应用程序将自行关闭！没有错误或任何错误，它没有崩溃或关闭，它只会关闭应用程序并将我返回到我手机的主页。此外，logcat中没有任何内容。

有人可以帮忙解释一下这个问题吗？

这里是检测文本方法的代码：

    private void detectText() {
    Scalar CONTOUR_COLOR = new Scalar(255);
    MatOfKeyPoint keypoint = new MatOfKeyPoint();
    List<KeyPoint> listpoint;
    KeyPoint kpoint;
    Mat mask = Mat.zeros(mGrey.size(), CvType.CV_8UC1);
    int rectanx1;
    int rectany1;
    int rectanx2;
    int rectany2;
    int imgsize = mGrey.height() * mGrey.width();
    Scalar zeos = new Scalar(0, 0, 0);

    List<MatOfPoint> contour2 = new ArrayList<MatOfPoint>();
    Mat kernel = new Mat(1, 50, CvType.CV_8UC1, Scalar.all(255));
    Mat morbyte = new Mat();
    Mat hierarchy = new Mat();

    Rect rectan3;
    //
    FeatureDetector detector = FeatureDetector
            .create(FeatureDetector.MSER);
    detector.detect(mGrey, keypoint);
    listpoint = keypoint.toList();
    //
    for (int ind = 0; ind < listpoint.size(); ind++) {
        kpoint = listpoint.get(ind);
        rectanx1 = (int) (kpoint.pt.x - 0.5 * kpoint.size);
        rectany1 = (int) (kpoint.pt.y - 0.5 * kpoint.size);
        rectanx2 = (int) (kpoint.size);
        rectany2 = (int) (kpoint.size);
        if (rectanx1 <= 0)
            rectanx1 = 1;
        if (rectany1 <= 0)
            rectany1 = 1;
        if ((rectanx1 + rectanx2) > mGrey.width())
            rectanx2 = mGrey.width() - rectanx1;
        if ((rectany1 + rectany2) > mGrey.height())
            rectany2 = mGrey.height() - rectany1;
        Rect rectant = new Rect(rectanx1, rectany1, rectanx2, rectany2);
        try {
            Mat roi = new Mat(mask, rectant);
            roi.setTo(CONTOUR_COLOR);
        } catch (Exception ex) {
            Log.d("mylog", "mat roi error " + ex.getMessage());
        }
    }

    Imgproc.morphologyEx(mask, morbyte, Imgproc.MORPH_DILATE, kernel);
    Imgproc.findContours(morbyte, contour2, hierarchy,
            Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_NONE);
    for (int ind = 0; ind < contour2.size(); ind++) {
        rectan3 = Imgproc.boundingRect(contour2.get(ind));
        rectan3 = Imgproc.boundingRect(contour2.get(ind));
        if (rectan3.area() > 0.5 * imgsize || rectan3.area() < 100
                || rectan3.width / rectan3.height < 2) {
            Mat roi = new Mat(morbyte, rectan3);
            roi.setTo(zeos);

        } else
            Imgproc.rectangle(mRgba, rectan3.br(), rectan3.tl(),
                    CONTOUR_COLOR);
    }
}

我描述了设备的内存，它实际上正在增加，如下面的屏幕截图所示：

logcat的一部分：

04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Video I/O:
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Parallel framework:            TBB (ver 4.4 interface 9003)
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Other third-party libraries:
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Use IPP:                     NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Use Eigen:                   NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Use Cuda:                    NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Use OpenCL:                  NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Use OpenVX:                  NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Use custom HAL:              YES (carotene (ver 0.0.1))
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Python 2:
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Interpreter:                 /usr/bin/python2.7 (ver 2.7.6)
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Python 3:
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Interpreter:                 /usr/bin/python3.4 (ver 3.4.3)
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Python (for build):            /usr/bin/python2.7
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Java:
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     ant:                         /usr/bin/ant (ver 1.9.3)
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Java wrappers:               YES
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Java tests:                  NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Matlab:                        NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Tests and samples:
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Tests:                       NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     Performance tests:           NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:     C/C++ Examples:              NO
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   Install path:                  /build/master_pack-android/build/o4a/install
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper:   cvconfig.h is in:              /build/master_pack-android/build/o4a
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication I/OpenCVManager/Helper: -----------------------------------------------------------------
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication D/OpenCVManager/Helper: Init finished with status 0
04-10 15:38:23.183 31168-31168/com.example.lama.myapplication D/OpenCVManager/Helper: Unbind from service
04-10 15:38:23.203 31168-31168/com.example.lama.myapplication D/OpenCVManager/Helper: Calling using callback
04-10 15:38:23.203 31168-31168/com.example.lama.myapplication D/CameraBridge: call checkCurrentState
04-10 15:38:50.803 31168-31178/com.example.lama.myapplication I/art: Background sticky concurrent mark sweep GC freed 97281(3MB) AllocSpace objects, 14(872KB) LOS objects, 16% free, 18MB/22MB, paused 661us total 106.786ms
04-10 15:38:50.813 31168-31178/com.example.lama.myapplication W/art: Suspending all threads took: 5.350ms
04-10 15:39:00.943 31168-31174/com.example.lama.myapplication W/art: Suspending all threads took: 17.194ms
04-10 15:39:04.953 31168-31174/com.example.lama.myapplication W/art: Suspending all threads took: 9.868ms

如何解决这个问题？

使用opencv

0 个答案: