I'm trying to capture an image from the camera preview and convert it to a Mat object using OpenCV.
I registered the callbak method public void onPreviewFrame(byte[] data, Camera camera)
so I receive all preview frames from the camera, but I can't get it to convert to OpenCV Mat object.
I'm currently using the following code to convert the preview data
to a Mat object:
Mat previewFrameMat = new Mat(1, data.length, CvType.CV_8U);
previewFrameMat.put(0, 0, data);
Is this the correct way to do it ? Am I using the correct image type (CvType.CV_8U
) ?
Have you seen how OpenCV samples do this?
mYuv = new Mat(getFrameHeight() + getFrameHeight() / 2,
getFrameWidth(), CvType.CV_8UC1);
....
mYuv.put(0, 0, data);
Full source can be found in the Android package from SourceForge or here: http://code.opencv.org/projects/opencv/repository/entry/trunk/opencv/samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/Sample1View.java
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