AndroidOpenCv

First I get into JavaCameraView.java class in the OpenCV Library and then in the initializeCamera add the following lines just before mCamera.startPreview(); private SurfaceTexture mSurfaceTexture1; protected Camera mCamera; mCamera = Camera.open(); Camera.Parameters p = mCamera.getParameters(); p.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH); mCam.setParameters(p); mSurfaceTexture1 = new SurfaceTexture(0); try { mCamera.setPreviewTexture(mSurfaceTexture1); } catch (IOException ex) { // Ignore } mCamera.startPreview();

First I get into JavaCameraView.java class in the OpenCV Library and then in the initializeCamera add the following lines just before mCamera.startPreview();             setDisplayOrientation(mCamera, 90);             mCamera.setPreviewDisplay(getHolder()); The first function implemented like this protected void setDisplayOrientation(Camera camera, int angle){     Method downPolymorphic;     try     {         downPolymorphic = camera.getClass().getMethod("setDisplayOrientation", new Class[] { int.class });         if (downPolymorphic != null)             downPolymorphic.invoke(camera, new Object[] { angle });     }     catch (Exception e1)     {         e1.printStackTrace();     } }  Reference : https://stackov...