我正在尝试在圆圈或点上应用蒙版。我画在嘴唇上方的圆圈上涂胡子。但我无法用小胡子的形象取而代之。我没有使用原生。请帮帮我。
答案 0 :(得分：1)
这是我完整的图像掩码代码请参考。这里可以使用相机作为黄色，绿色和棕色的遮蔽框架。
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
protected CameraBridgeViewBase cameraView;
protected TextView tvDistance;
private Mat mRgba;
private Mat mHSV;
private Mat red;
private Mat blue;
private Mat yellow;
private Mat green;
private Mat brown;
private Mat mask;
private MatOfPoint matOfPoint;
private Mat pts;
private Handler handler;
int height;
int width;
int camera_height;
int camera_width;
ArrayList<Float> averageList;
static int AVERAGE_FACTOR = 3;
private MenuItem mItemPreviewFeatures;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView(R.layout.activity_main);
initView();
averageList = new ArrayList<>();
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
height = displaymetrics.heightPixels;
width = displaymetrics.widthPixels;
handler = new Handler(Looper.getMainLooper());
cameraView.post(new Runnable() {
@Override
public void run() {
camera_height = cameraView.getHeight();
camera_width = cameraView.getWidth();
}
});
cameraView.setVisibility(SurfaceView.VISIBLE);
cameraView.setCvCameraViewListener(new CameraBridgeViewBase.CvCameraViewListener2() {
@Override
public void onCameraViewStarted(int width, int height) {
mRgba = new Mat(height, width, CvType.CV_8UC4);
mHSV = new Mat(height, width, CvType.CV_8UC4);
mask = new Mat(height, width, CvType.CV_8UC4);
pts = new Mat(height, width, CvType.CV_8UC1);
yellow = new Mat(height, width, CvType.CV_8UC1);
green = new Mat(height, width, CvType.CV_8UC1);
brown = new Mat(height, width, CvType.CV_8UC1);
blue = new Mat(height, width, CvType.CV_8UC1);
red = new Mat(height, width, CvType.CV_8UC1);
}
@Override
public void onCameraViewStopped() {
mRgba.release();
mHSV.release();
mask.release();
pts.release();
blue.release();
yellow.release();
green.release();
brown.release();
red.release();
}
@Override
public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
mRgba = inputFrame.rgba();
Imgproc.cvtColor(mRgba, mHSV, Imgproc.COLOR_BGR2HSV, 4);
//red
//Core.inRange(mHSV, new Scalar(234, 240, 199), new Scalar(234, 240, 104), red);
//blue
//Core.inRange(mHSV, new Scalar(110, 50, 50), new Scalar(130, 255, 255), blue);
//Yellow
Core.inRange(mHSV, new Scalar(25, 80, 80), new Scalar(36, 255, 255), yellow);
//Green
Core.inRange(mHSV, new Scalar(37, 80, 80), new Scalar(70, 255, 255), green);
//Brown
Core.inRange(mHSV, new Scalar(10, 80, 80), new Scalar(30, 200, 200), brown);
// logical OR mask
//Core.bitwise_or(red, blue, blue);
//Core.bitwise_or(blue, yellow, yellow);
Core.bitwise_or(yellow, green, green);
Core.bitwise_or(green, brown, mask);
//Imgproc.dilate(mask, mask, new Mat());
// Find non zero pixels
pts = Mat.zeros(mask.size(), mask.type());
Core.findNonZero(mask, pts);
// Compute bounding box
matOfPoint = new MatOfPoint(pts);
try {
if (matOfPoint.cols() > 0 && matOfPoint.rows() > 0) {
final Rect box = Imgproc.boundingRect(matOfPoint);
//Log.d(TAG, "Height : " + box.height + " :: Width : " + box.width);
handler.post(new Runnable() {
@Override
public void run() {
float focalLength = Util.getFocalLength(box.width, 1, 1);
float distance = Util.getDistance_2(focalLength / 3, camera_height, box.height);
if (averageList.size() > AVERAGE_FACTOR) {
float d = 0.0f;
for (int i = 0; i < AVERAGE_FACTOR; i++) {
d += averageList.get(i);
}
tvDistance.setText(String.valueOf(String.format(Locale.ENGLISH, "%.2f", (Math.abs(d / AVERAGE_FACTOR) / 304.8)) + " ft"));
averageList.clear();
} else {
averageList.add(distance);
}
}
});
//Core.rectangle(mask, box.tl(), box.br(), new Scalar(255, 0, 0), 5);
}
Core.rectangle(mRgba, new Point(350, 350), new Point(camera_width - 350, camera_height - 350), new Scalar(255, 0, 0), 2);
} catch (Exception e) {
e.printStackTrace();
}
return mRgba;
}
});
}
private void initView() {
cameraView = (JavaCameraView) findViewById(R.id.cameraView);
tvDistance = (TextView) findViewById(R.id.tvDistance);
}
private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
@Override
public void onManagerConnected(int status) {
switch (status) {
case LoaderCallbackInterface.SUCCESS:
cameraView.enableView();
break;
default:
super.onManagerConnected(status);
break;
}
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "called onCreateOptionsMenu");
mItemPreviewFeatures = menu.add("Tracking");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item == mItemPreviewFeatures) {
Toast.makeText(this, "Selected", Toast.LENGTH_SHORT).show();
}
return true;
}
@Override
protected void onPause() {
super.onPause();
if (cameraView != null)
cameraView.disableView();
}
@Override
protected void onResume() {
super.onResume();
if (OpenCVLoader.initDebug()) {
Log.d(TAG, "OpenCV loaded");
mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
} else {
Log.d(TAG, "OpenCV not loaded");
OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_9, this, mLoaderCallback);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
if (cameraView != null)
cameraView.disableView();
}
}