运行Demo前请先安装 OpenCV Manager (必须！！) 并给Demo授予CAMERA权限
Step 1. Add the JitPack repository to your build file
Add it in your root build.gradle at the end of repositories:
Step 2. Add the dependency
Step 3. Add it in your app build.gradle
Step 4. Set screen orientation in your AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest ……>
<application
……>
<activity
……
android:screenOrientation="landscape">
……
</activity>
</application>
</manifest><com.kongqw.view.CameraFaceDetectionView
android:id="@+id/cameraFaceDetectionView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>CameraFaceDetectionView cameraFaceDetectionView = (CameraFaceDetectionView) findViewById(R.id.cameraFaceDetectionView);
cameraFaceDetectionView.setOnFaceDetectorListener(new CameraFaceDetectionView.OnFaceDetectorListener() {
@Override
public void onFace(Mat mat, Rect rect) {
}
});mCameraFaceDetectionView.setOnOpenCVInitListener(new OnOpenCVInitListener() {
@Override
public void onLoadSuccess() {
Log.i(TAG, "onLoadSuccess: ");
}
@Override
public void onLoadFail() {
Log.i(TAG, "onLoadFail: ");
}
@Override
public void onMarketError() {
Log.i(TAG, "onMarketError: ");
}
@Override
public void onInstallCanceled() {
Log.i(TAG, "onInstallCanceled: ");
}
@Override
public void onIncompatibleManagerVersion() {
Log.i(TAG, "onIncompatibleManagerVersion: ");
}
@Override
public void onOtherError() {
Log.i(TAG, "onOtherError: ");
}
});mCameraFaceDetectionView.loadOpenCV(getApplicationContext());mCameraFaceDetectionView.switchCamera();boolean isSave = FaceUtil.saveImage(Context context, Mat mat, Rect rect, String fileName);boolean isSave = FaceUtil.deleteImage(Context context, String fileName);用于显示，对比直接调用 FaceUtil.compare 即可。
Bitmap bitmap = FaceUtil.getImage(Context context, String fileName);特征文件不存在没有抛异常，返回-1.
double score = FaceUtil.compare(Context context, String fileName1, String fileName2);