|| Fabian Hoyos on 2015-07-03 21:49
|| Priority: Normal
|| Affected: 2.4.9 (latest release)
|| Category: None
|| Tracker: Bug
|| Difficulty: Medium
|| PR: 
|| Platform: ARM / Android

I am working in detect faces using the opencv Android SDK 2.4.11. The  application shows the video preview in portrait mode, I modified the opencv Android SDK to adapt to the video preview in a portrait mode, this change was done in the onCameraFrame method and It consists in rotate 90 degree the inputFrame.rgba() 




        public void onCameraViewStarted(int width, int height) {
        //mGray = new Mat();
        // mRgba = new Mat();
        mRgba = new Mat(height, width, CvType.CV_8UC4);
        mRgbaF = new Mat(height, width, CvType.CV_8UC4);
        mRgbaT = new Mat(width, width, CvType.CV_8UC4);
        }


       public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
        mRgba = inputFrame.rgba();
        mGray = inputFrame.gray();

        //rotate 90 degree 
        Core.transpose(mRgba, mRgbaT);
        Imgproc.resize(mRgbaT, mRgbaF, mRgbaF.size(), 0, 0, 0);
        Core.flip(mRgbaF, mRgba,1);





      }

The video preview adapts to the phone orientation. But the face detection only works in right landscape orientation. Also I look at the stored pictures and they aren't rotated to portrait, no matter the phone rotation.