Can i proccess raw RGB camera data in an Android device without using NDK+opencv? I don't even need to change the displayed data, only to get information from it.
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What have you tried so far? You can get get a still image from the camera. What information do you need/want? – Fildor Sep 23 '12 at 11:42
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Check this answer : http://stackoverflow.com/questions/10775942/android-sdk-get-raw-preview-camera-image-without-displaying-it – Eli Turchinsky Sep 23 '12 at 11:44
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As far as I remember, the image data comes in NV21-format from your byte[] data
Code taken from https://developer.android.com/guide/topics/media/camera.html (onPictureTaken from PictureCallback(), but similar to onPreviewFrame(byte[] data, Camera camera) from Camera.PreviewCallback.
private PictureCallback mPicture = new PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
//convert here and do other stuff like save the picture.
}
};
In both cases you have to convert from NV21 to RGB in said methods, that you could implement like this: Confusion on YUV NV21 conversion to RGB
