title: Opencv import highgui in android studio is showing error.Cannot resolve(I added the library still the error remain)
body: <p>I have the following code which is for image segmentation using grabcut opencv. I am using opencv for the first time. I added the opencv library. While others worked perfectly highgui is still showing cannot resolve symbol.Do i need to add something else.
  (<strong>If you can help me with the code too, will be an additional help</strong>)
  Here is the code:
  <strong>Edit : I have posted the updated code:</strong></p>
  
  <pre><code>       package com.example.android.seg;
  
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.util.Log;
  import android.view.Menu;
  import android.view.MenuItem;
  
  
  import java.io.IOException;
  
  import org.opencv.android.OpenCVLoader;
  import org.opencv.android.Utils;
  import org.opencv.core.Core;
  import org.opencv.core.CvType;
  import org.opencv.core.Mat;
  import org.opencv.core.Point;
  import org.opencv.core.Rect;
  import org.opencv.core.Scalar;
  import org.opencv.imgproc.Imgproc;
  import org.opencv.core.*;
  import org.opencv.imgcodecs.Imgcodecs; // imread, imwrite, etc
     // VideoCapture
  
  import android.app.Activity;
  import android.graphics.Bitmap;
  import android.graphics.BitmapFactory;
  import android.graphics.Canvas;
  import android.view.Gravity;
  import android.view.MotionEvent;
  import android.view.View;
  import android.view.View.OnTouchListener;
  import android.widget.ImageView;
  import android.widget.Toast;
  
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.MenuItem;
  
  
  public class seg extends Activity implements OnTouchListener {
      static{
          if (!OpenCVLoader.initDebug()) {
              Log.i("TEST", "Cannot connect to OpenCV Manager");
              // Handle initialization error
          }
          else {
              Log.i("TEST", "Connected to OpenCV Manager");
          }
      }
      ImageView imageView;
      Bitmap bitmap;
      Canvas canvas;
      Scalar color = new Scalar(255, 0, 0, 255);
      Point tl, br;
      int counter;
      Bitmap bitmapResult, bitmapBackground;
      Mat dst = new Mat();
      //"sdcard/DCIM/wall.jpg"
      final String pathToImage  = "wall.jpg";
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
  
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_seg);
          imageView = (ImageView) this.findViewById(R.id.imageView);
  
          bitmap = BitmapFactory.decodeFile(pathToImage);
          Toast msg = Toast.makeText(seg.this, "Press top left and bottom right of the      foreground image", Toast.LENGTH_LONG);
  
          msg.setGravity(Gravity.TOP|Gravity.LEFT, 0, 0);
  
          msg.show();
          bitmapResult = bitmap.copy(bitmap.getConfig(), true);
          canvas = new Canvas(bitmapResult);
  
          imageView.setImageBitmap(bitmapResult);
          imageView.setOnTouchListener(this);
  
          tl = new Point();
          br = new Point();
          counter = 0;
      }
  
      //@Override
      public boolean onTouch(View v, MotionEvent event) {
  
          if (event.getAction() == MotionEvent.ACTION_DOWN) {
              if (counter == 0) {
                  tl.x = event.getX();
                  tl.y = event.getY();
                  counter++;
              } else if (counter == 1) {
                  br.x = event.getX();
                  br.y = event.getY();
                  counter++;
  
                  Mat img = new Mat();
                  //val mat = Imgcodecs.imread(pathToImage)
                  img = Imgcodecs.imread(pathToImage);
                  Mat background = new Mat();
                  try {
                      background = Utils.loadResource(getApplicationContext(),
                              R.drawable.wall );
                  } catch (IOException e) {
  
                      e.printStackTrace();
                  }
  
                  backgroundSubtracting(img, background);
                  Imgcodecs.imwrite("wall.jpg", dst);
                  //Highgui.imwrite("/mnt/sdcard/GRABCUT/rect.png", dst);
                  Bitmap jpg = BitmapFactory
                          .decodeFile("wall.jpg");
  
                  imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
                  imageView.setAdjustViewBounds(true);
                  imageView.setPadding(2, 2, 2, 2);
                  imageView.setImageBitmap(jpg);
                  imageView.invalidate();
              }
          }
  
          return true;
      }
  
      private void backgroundSubtracting(Mat img, Mat background) {
  
          Mat firstMask = new Mat();
          Mat bgModel = new Mat();
          Mat fgModel = new Mat();
          Mat mask;
          Mat source = new Mat(1, 1, CvType.CV_8U, new Scalar(3.0));
          dst = new Mat();
          Rect rect = new Rect(tl, br);
  
          Imgproc.grabCut(img, firstMask, rect, bgModel, fgModel, 1, 0 /* GC_INIT_WITH_RECT */);
          Core.compare(firstMask, source/* GC_PR_FGD */, firstMask, Core.CMP_EQ);
  
          Mat foreground = new Mat(img.size(), CvType.CV_8UC3, new Scalar(255,
                  255, 255));
          img.copyTo(foreground, firstMask);
          Imgproc.rectangle(img, tl, br, color);
          //Core.rectangle(img, tl, br, color);
  
          Mat tmp = new Mat();
          Imgproc.resize(background, tmp, img.size());
          background = tmp;
          mask = new Mat(foreground.size(), CvType.CV_8UC1, new Scalar(255, 255, 255));
  
          Imgproc.cvtColor(foreground, mask, 6/* COLOR_BGR2GRAY */);
          Imgproc.threshold(mask, mask, 254, 255, 1 /* THRESH_BINARY_INV */);
  
          Mat vals = new Mat(1, 1, CvType.CV_8UC3, new Scalar(0.0));
          background.copyTo(dst);
  
          background.setTo(vals, mask);
          Core.add(background, foreground, dst, mask);
  
          firstMask.release();
          source.release();
          bgModel.release();
          fgModel.release();
          vals.release();
      }
  
  }
  </code></pre>
  
  <p><strong>here is my logcat:</strong></p>
  
  <pre><code>  05-20 09:48:51.830  24423-24423/com.example.android.seg D/dalvikvm﹕ Late-enabling CheckJNI
  05-20 09:48:51.832  24423-24429/com.example.android.seg D/dalvikvm﹕ threadid=2: interp stack at 0x40000000
  05-20 09:48:51.840  24423-24431/com.example.android.seg D/dalvikvm﹕ threadid=3: interp stack at 0x40008000
  05-20 09:48:51.840  24423-24423/com.example.android.seg D/jdwp﹕ prepping for JDWP over ADB
  05-20 09:48:51.840  24423-24423/com.example.android.seg D/jdwp﹕ ADB transport startup
  05-20 09:48:51.841  24423-24432/com.example.android.seg D/dalvikvm﹕ threadid=4: interp stack at 0x49247000
  05-20 09:48:51.841  24423-24432/com.example.android.seg D/jdwp﹕ JDWP: thread running
  05-20 09:48:51.841  24423-24432/com.example.android.seg D/jdwp﹕ acceptConnection
  05-20 09:48:51.842  24423-24432/com.example.android.seg D/jdwp﹕ trying to receive file descriptor from ADB
  05-20 09:48:51.842  24423-24433/com.example.android.seg D/dalvikvm﹕ threadid=5: interp stack at 0x4bd75000
  05-20 09:48:51.851  24423-24432/com.example.android.seg D/jdwp﹕ received file descriptor 40 from ADB
  05-20 09:48:51.853  24423-24435/com.example.android.seg D/dalvikvm﹕ threadid=6: interp stack at 0x4bd7d000
  05-20 09:48:51.854  24423-24435/com.example.android.seg D/dalvikvm﹕ threadid=6: calling run()
  05-20 09:48:51.855  24423-24432/com.example.android.seg D/jdwp﹕ processIncoming
  05-20 09:48:51.855  24423-24432/com.example.android.seg D/jdwp﹕ processIncoming
  05-20 09:48:51.855  24423-24432/com.example.android.seg D/jdwp﹕ handlePacket : cmd=0x1, cmdSet=0xC7, len=0x13, id=0x40000044, flags=0x0, dataLen=0x8
  05-20 09:48:51.856  24423-24432/com.example.android.seg D/jdwp﹕ REQ: DDM.Chunk (cmd=199/1 dataLen=8 id=0x40000044)
  05-20 09:48:51.857  24423-24432/com.example.android.seg D/jdwp﹕ reply: dataLen=9 err=NONE(0)
  05-20 09:48:51.857  24423-24432/com.example.android.seg D/jdwp﹕ processIncoming
  05-20 09:48:51.857  24423-24432/com.example.android.seg D/jdwp﹕ handlePacket : cmd=0x1, cmdSet=0xC7, len=0x17, id=0x40000045, flags=0x0, dataLen=0xC
  05-20 09:48:51.857  24423-24432/com.example.android.seg D/jdwp﹕ REQ: DDM.Chunk (cmd=199/1 dataLen=12 id=0x40000045)
  05-20 09:48:51.859  24423-24432/com.example.android.seg D/jdwp﹕ reply: dataLen=50 err=NONE(0)
  05-20 09:48:51.860  24423-24432/com.example.android.seg D/jdwp﹕ processIncoming
  05-20 09:48:51.860  24423-24432/com.example.android.seg D/jdwp﹕ handlePacket : cmd=0x1, cmdSet=0xC7, len=0x13, id=0x40000046, flags=0x0, dataLen=0x8
  05-20 09:48:51.860  24423-24432/com.example.android.seg D/jdwp﹕ REQ: DDM.Chunk (cmd=199/1 dataLen=8 id=0x40000046)
  05-20 09:48:51.862  24423-24432/com.example.android.seg D/jdwp﹕ reply: dataLen=216 err=NONE(0)
  05-20 09:48:51.862  24423-24432/com.example.android.seg D/jdwp﹕ processIncoming
  05-20 09:48:51.862  24423-24432/com.example.android.seg D/jdwp﹕ handlePacket : cmd=0x1, cmdSet=0xC7, len=0x13, id=0x40000047, flags=0x0, dataLen=0x8
  05-20 09:48:51.863  24423-24432/com.example.android.seg D/jdwp﹕ REQ: DDM.Chunk (cmd=199/1 dataLen=8 id=0x40000047)
  05-20 09:48:51.863  24423-24432/com.example.android.seg D/jdwp﹕ reply: dataLen=9 err=NONE(0)
  05-20 09:48:51.863  24423-24432/com.example.android.seg D/jdwp﹕ processIncoming
  05-20 09:48:51.863  24423-24432/com.example.android.seg D/jdwp﹕ handlePacket : cmd=0x1, cmdSet=0xC7, len=0x14, id=0x40000048, flags=0x0, dataLen=0x9
  05-20 09:48:51.863  24423-24432/com.example.android.seg D/jdwp﹕ REQ: DDM.Chunk (cmd=199/1 dataLen=9 id=0x40000048)
  05-20 09:48:51.863  24423-24432/com.example.android.seg D/jdwp﹕ reply: dataLen=0 err=NONE(0)
  05-20 09:48:51.863  24423-24436/com.example.android.seg D/dalvikvm﹕ threadid=7: interp stack at 0x4bd85000
  05-20 09:48:51.864  24423-24436/com.example.android.seg D/dalvikvm﹕ threadid=7: calling run()
  05-20 09:48:51.872  24423-24437/com.example.android.seg D/dalvikvm﹕ threadid=8: interp stack at 0x4bd8d000
  05-20 09:48:51.873  24423-24437/com.example.android.seg D/dalvikvm﹕ threadid=8: calling run()
  05-20 09:48:52.050  24423-24439/com.example.android.seg D/dalvikvm﹕ threadid=9: interp stack at 0x4bd95000
  05-20 09:48:52.052  24423-24440/com.example.android.seg D/dalvikvm﹕ threadid=10: interp stack at 0x4bd9d000
  05-20 09:48:52.064  24423-24423/com.example.android.seg D/jdwp﹕ sendBufferedRequest : len=0x39
  05-20 09:48:52.918  24423-24423/com.example.android.seg D/jdwp﹕ sendBufferedRequest : len=0x45
  05-20 09:48:53.289  24423-24423/com.example.android.seg D/ActivityThread﹕ BIND_APPLICATION handled : 0 / AppBindData{appInfo=ApplicationInfo{41615870 com.example.android.seg}}
  05-20 09:48:53.296  24423-24423/com.example.android.seg D/OpenCV/StaticHelper﹕ Trying to get library list
  05-20 09:48:53.296  24423-24423/com.example.android.seg D/dalvikvm﹕ Trying to load lib /mnt/asec/com.example.android.seg-2/lib/libopencv_info.so 0x41618e00
  05-20 09:48:53.297  24423-24423/com.example.android.seg A/libc﹕ Fatal signal 7 (SIGBUS) at 0x4bf6d9b8 (code=2)
  </code></pre>