Question

我正在尝试检测自动拍摄的照片上的脸，但它不起作用。在我捕获图片后，我将其发送到ImageView，然后我尝试从他们的，并进行面部检测。但是有错误，位图需要R.drawble，我给R.id.我不知道该用什么我是新手

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<select>
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
</select>
<br>
<input type="text">
<button type="button">Get values</button> 
</form>

}

这是我拍摄照片的课程

public class MainActivity extends AppCompatActivity {
public static int cameraID = 0;
public static boolean isBlack = true;
public static ImageView image;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    image = (ImageView) findViewById(R.id.imgView);
    Button btfront=(Button) findViewById(R.id.frontButton);
    btfront.setOnClickListener(new View.OnClickListener()
    {

        @Override
        public void onClick(View v) {
            onFrontClick(v);
            facedetection(v);


        }

    });
}

public void onFrontClick(View v){
    RadioButton rdbBlack = (RadioButton) findViewById(R.id.rdb_black);
    if(rdbBlack.isChecked()){
        isBlack = true;
    }else{
        isBlack = false;
    }
    cameraID = 1;
    Intent i = new Intent(MainActivity.this,CameraView.class);
    startActivityForResult(i, 999);



}

public void onBackClick(View v){
    RadioButton rdbBlack = (RadioButton) findViewById(R.id.rdb_black);
    if(rdbBlack.isChecked()){
        isBlack = true;
    }else{
        isBlack = false;
    }
    cameraID = 0;
    Intent i = new Intent(MainActivity.this,CameraView.class);
    startActivityForResult(i, 999);
}
public void facedetection(View v)
{
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inMutable=true;
    Bitmap myBitmap = BitmapFactory.decodeResource(
            getApplicationContext().getResources(),
            R.id.imgView,
            options);
    Paint myRectPaint = new Paint();
    myRectPaint.setStrokeWidth(5);
    myRectPaint.setColor(Color.RED);
    myRectPaint.setStyle(Paint.Style.STROKE);
    Bitmap tempBitmap = Bitmap.createBitmap(myBitmap.getWidth(), myBitmap.getHeight(), Bitmap.Config.RGB_565);
    Canvas tempCanvas = new Canvas(tempBitmap);
    tempCanvas.drawBitmap(myBitmap, 0, 0, null);
    FaceDetector faceDetector = new
            FaceDetector.Builder(getApplicationContext()).setTrackingEnabled(false)
            .build();
    if(!faceDetector.isOperational()){
        new AlertDialog.Builder(v.getContext()).setMessage("Could not set up the face detector!").show();
        return;
    }

    Frame frame = new Frame.Builder().setBitmap(myBitmap).build();
    SparseArray<Face> faces = faceDetector.detect(frame);
    for(int j=0; j<faces.size(); j++) {
        Face thisFace = faces.valueAt(j);
        float x1 = thisFace.getPosition().x;
        float y1 = thisFace.getPosition().y;
        float x2 = x1 + thisFace.getWidth();
        float y2 = y1 + thisFace.getHeight();
        tempCanvas.drawRoundRect(new RectF(x1, y1, x2, y2), 2, 2, myRectPaint);
    }
    image.setImageDrawable(new BitmapDrawable(getResources(),tempBitmap));
}

Answer 1

@Lefteris如果您正在查看转换

ContextCompat.getDrawable(context, android.R.drawable.ic_dialog_email)

如何在捕获的照片android上进行面部检测？

1 个答案: