1

i am trying to set up Opencv on android using the given tutorials as the base. i havenot been able to control the video size on the screen, i want to enlarge it to full screen. i am using the CameraBridgeViewBase object as the VideoCapture object does not work. does anyone know how to set up the picture to be full screen?

relevant code:

public class Sample3Native extends Activity implements CvCameraViewListener {
private static final String TAG = "OCVSample::Activity";

private Mat                    mRgba;
private Mat                    mGrayMat;
private Mat                    mFinalMat;


public CameraBridgeViewBase   mOpenCvCameraView;



private BaseLoaderCallback     mLoaderCallback = new BaseLoaderCallback(this) {
    @Override
    public void onManagerConnected(int status) {



        switch (status) {
            case LoaderCallbackInterface.SUCCESS:
            {
                Log.i(TAG, "OpenCV loaded successfully");


                mOpenCvCameraView.enableView();

            } break;
            default:
            {
                super.onManagerConnected(status);
            } break;
        }
    }
};

public Sample3Native() {
    Log.i(TAG, "Instantiated new " + this.getClass());
}

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    Log.i(TAG, "called onCreate");
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);


    setContentView(R.layout.tutorial3_surface_view);


    mOpenCvCameraView = (CameraBridgeViewBase) findViewById(R.id.tutorial4_activity_surface_view);
    mOpenCvCameraView.setCvCameraViewListener(this);


}

any help would be much appreciated

4

3 回答 3

1

我按照这些步骤让它工作了。

  1. 删除 ActionBar - 转到值/样式并更改

    样式名称="AppTheme" 父="Theme.AppCompat.Light.DarkActionBar"

    至

    样式名称="AppTheme" 父="Theme.AppCompat.NoActionBar"

  2. 设置最大帧大小 - 使用此代码设置帧大小。

    mOpenCvCameraView.setMaxFrameSize(720, 480);

于 2016-04-20T05:02:57.770 回答
0

您需要在 Android 清单文件中将活动主题设置为全屏。在您的活动中添加 android:theme="@android:style/Theme.NoTitleBar.Fullscreen"。

于 2013-08-12T15:35:13.407 回答
0

对于仍在寻找这个的人，我已经解决了这个问题（有点）。我似乎无法让它适用于 OpenCV v 2.4.3。我已经尝试了互联网上的所有内容。但是，在 OpenCV 2.4.3.2 中，他们添加了一种设置相机尺寸的方法

disconnectCamera();
mMaxHeight = //your desired height
mMaxWidth = //your desired width
connectCamera(mMaxWidth, mMaxHeight);

查看 OpenCV 教程 5，特别是 SampleJavaCameraView -> setResolution 方法

于 2013-02-01T17:47:30.787 回答