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Comments (5)

kongqw avatar kongqw commented on May 20, 2024

@790396054 抓取一帧,将Mat转成Bitmap可否满足你的需求?

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790396054 avatar 790396054 commented on May 20, 2024

1.如何抓取一帧?
2.抓取一帧后可以保证摄像头预览画面还是实时预览么?

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790396054 avatar 790396054 commented on May 20, 2024

mCamera.takePicture(null, null, new Camera.PictureCallback() {
@OverRide
public void onPictureTaken(byte[] data, Camera camera) {
if (callBack != null) {
callBack.hasTakePicture(data);
}
}
});

我用 takePicture 方法,抓取照片后,摄像头不预览了,调用 mCamera.startPreview(); 还是不能预览

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kongqw avatar kongqw commented on May 20, 2024
    @Override
    public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
        // 子线程(非UI线程)
        mRgba = inputFrame.rgba();

        // TODO 抓取 mRgba  转 Bitmap

        return mRgba;
    }

Mat 转 Bitmap

Bitmap bitmap = Bitmap.createBitmap(mat.width(), mat.height(), Bitmap.Config.ARGB_8888);
Utils.matToBitmap(mat, bitmap);

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790396054 avatar 790396054 commented on May 20, 2024

解决了,十分感谢

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