Android Studio Opencv Canny检测

Question

I want to add canny detection for an image when I click to button. I cant take any exception but emilator stops working without starting.

buton2.setOnClickListener(new View.OnClickListener() {

    public void onClick(View view) {

        ImageView i = (ImageView) findViewById(R.id.imageView);

        Bitmap bmp =BitmapFactory.decodeResource(getResources(),R.drawable.ab);
        Mat srcMat = new Mat ( bmp.getHeight(), bmp.getWidth(), CvType.CV_8UC3);

        Bitmap myBitmap32 = bmp.copy(Bitmap.Config.ARGB_8888, true);

        Utils.bitmapToMat(myBitmap32, srcMat);

        Mat gray = new Mat(srcMat.size(), CvType.CV_8UC1);
        Imgproc.cvtColor(srcMat, gray, Imgproc.COLOR_RGB2GRAY);
        Mat edge = new Mat();
        Mat dst = new Mat();
        Imgproc.Canny(gray, edge, 80, 90);
        Imgproc.cvtColor(edge, dst, Imgproc.COLOR_GRAY2RGBA,4);
        Bitmap resultBitmap = Bitmap.createBitmap(dst.cols(), dst.rows(),Bitmap.Config.ARGB_8888);
        Utils.matToBitmap(dst, resultBitmap);

        i.setImageBitmap(resultBitmap);
    }
});

Answer 1

my opencv version 3.0.0 so ı must write under onCreate method System.loadLibrary("opencv_java3");

so, solve my problem

Answer 2

您是否将以下行添加到onCreate方法中。

OpenCVLoader.initDebug();