我关注 https://github.com/Ajay191191/Opencv-Face-Recognition
下图显示了在activity_main.xml和两个红色圆圈下面具有相同错误的错误.
代码是:
package com.example.altaf.opencv_test;
import android.content.Intent;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;
import android.support.v7.app.AppCompatActivity;
import org.opencv.objdetect.CascadeClassifier;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.R;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
Button detect_face, add_name, take_picture;
TextView tv;
TextView detectedName;
private String File_Image_TAG = new String("image_db");
private String File_Name_TAG = new String("name_db");
public static Map idToImage;
public static Map idToName;
public static String current_name = new String("temp");
ImageView captured_image;
public static boolean face_detected;
public static File working_Dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/opencv");
public CascadeClassifier haar_cascade;
public static int ID;
private String Name_obt;
BufferedWriter bW;
static File fileC;
static {
working_Dir.mkdirs();
fileC = new File(MainActivity.working_Dir, "csv.txt");
}
public static boolean pictureTaken, recognized;
//Preview preview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Name_obt = getIntent().getStringExtra("Name");
if (Name_obt != null) {
Log.i("Ajay", "Detected Name" + Name_obt);
}
ButtonListener listener = new ButtonListener();
detect_face = ((Button) findViewById(R.id.detect_face));
detect_face.setOnClickListener(listener);
take_picture = (Button) findViewById(R.id.take_picture);
take_picture.setOnClickListener(listener);
//Load from file:
File imagefile = new File(working_Dir, File_Image_TAG);
File nameFile = new File(working_Dir, File_Name_TAG);
if (imagefile.exists()) {
try {
FileInputStream f = new FileInputStream(imagefile);
ObjectInputStream s = new ObjectInputStream(f);
idToImage = (Map) s.readObject();
MainActivity.ID = idToImage.size();
s.close();
Log.i("Ajay", "Database Exists");
} catch (Exception e) {
e.printStackTrace();
}
}
if (nameFile.exists()) {
try {
FileInputStream f = new FileInputStream(nameFile);
ObjectInputStream s = new ObjectInputStream(f);
idToName = (Map) s.readObject();
s.close();
Log.i("Ajay", "Database Exists");
} catch (Exception e) {
e.printStackTrace();
}
}
add_name = (Button) findViewById(R.id.Add_n);
add_name.setOnClickListener(listener);
tv = (TextView) findViewById(R.id.name);
tv.setVisibility(View.GONE);
detectedName = (TextView) findViewById(R.id.Detected_name);
detectedName.setVisibility(View.GONE);
captured_image = (ImageView) findViewById(R.id.captured_image);
if (!pictureTaken) {
captured_image.setVisibility(View.GONE);
add_name.setVisibility(View.GONE);
detect_face.setVisibility(View.GONE);
take_picture.setVisibility(View.VISIBLE);
} else {
if (face_detected) {
if (!recognized) {
detect_face.setVisibility(View.GONE);
add_name.setVisibility(View.VISIBLE);
take_picture.setVisibility(View.GONE);
} else {
// TODO: Print the hash value for ID obtained.
detectedName.setVisibility(View.VISIBLE);
detectedName.setText(Name_obt != null ? Name_obt : "");
}
} else
detect_face.setVisibility(View.VISIBLE);
captured_image.setVisibility(View.VISIBLE);
// add_name.setVisibility(View.GONE);
take_picture.setVisibility(View.GONE);
Bitmap bmp = null;
File f = new File(working_Dir, current_name + "_det.jpg");
if (f.exists()) {
MainActivity.face_detected = true;
bmp = BitmapFactory.decodeFile(working_Dir.getAbsolutePath() + "/" + current_name + "_det.jpg");
} else {
MainActivity.face_detected = false;
bmp = BitmapFactory.decodeFile(working_Dir.getAbsolutePath() + "/" + current_name + ".jpg");
}
captured_image.setImageBitmap(bmp);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
private class ButtonListener implements View.OnClickListener {
Intent i;
public void onClick(View v) {
if (v.equals(findViewById(R.id.detect_face))) {
new Sample3View(getApplicationContext()).FindFaces(working_Dir.getAbsolutePath() + "/" + current_name, Sample3View.mCascadeFile.getAbsolutePath().toString());
Log.d("Ajay", "Image dir:" + working_Dir.getAbsolutePath() + "/" + current_name);
File f = new File(MainActivity.working_Dir, "csv.txt");
int return_id = -1;
if (f.exists() && MainActivity.ID > 1)
return_id = new Sample3View(getApplicationContext()).Find(working_Dir.getAbsolutePath() + "/" + current_name, Sample3View.mCascadeFile.getAbsolutePath().toString(), working_Dir.getAbsolutePath() + "/csv.txt");
MainActivity.face_detected = true;
String Name = null;
if (return_id != -1) {
Name = new String(idToName.get(return_id));
MainActivity.recognized = true;
}
startActivity(getIntent().putExtra("Name", Name));
//TODO : Add Face Detection
} else if (v.equals(findViewById(R.id.Add_Name))) {
tv.setVisibility(View.VISIBLE);
if (tv.getText().toString().equals(""))
return;
String new_name = new String(tv.getText().toString());
// faces.put(current_name, new ArrayList());
if (idToImage == null) {
idToImage = new HashMap();
MainActivity.ID = 0;
}
if (idToName == null)
idToName = new HashMap();
idToImage.put(MainActivity.ID, MainActivity.working_Dir + "/" + new_name + ".jpg");
idToImage.put(MainActivity.ID, MainActivity.working_Dir + "/" + new_name + "1.jpg");
idToName.put(MainActivity.ID, new_name);
File f = new File(MainActivity.working_Dir, MainActivity.current_name + "_det.jpg");
if (!f.exists()) {
try {
f.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
File f_new = new File(MainActivity.working_Dir, new_name + ".jpg");
if (!f_new.exists()) {
try {
f_new.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
Log.i("Ajay", MainActivity.working_Dir + "");
f.renameTo(f_new);
f = new File(MainActivity.working_Dir, new_name + "1.jpg");
//copy the file content in bytes
try {
InputStream inStream = new FileInputStream(f_new);
OutputStream outStream = new FileOutputStream(f);
byte[] buffer = new byte[1024];
int length;
while ((length = inStream.read(buffer)) > 0) {
outStream.write(buffer, 0, length);
}
inStream.close();
outStream.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
File file = new File(MainActivity.working_Dir, File_Image_TAG);
FileOutputStream fo = new FileOutputStream(file);
ObjectOutputStream s = new ObjectOutputStream(fo);
s.writeObject(idToImage);
s.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
File file = new File(MainActivity.working_Dir, File_Name_TAG);
FileOutputStream fo = new FileOutputStream(file);
ObjectOutputStream s = new ObjectOutputStream(fo);
s.writeObject(idToName);
s.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
try {
bW = new BufferedWriter(new FileWriter(fileC, true));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
bW.append(MainActivity.working_Dir + "/" + new_name + ".jpg" + ";" + MainActivity.ID);
bW.newLine();
bW.append(MainActivity.working_Dir + "/" + new_name + "1.jpg" + ";" + MainActivity.ID);
bW.newLine();
bW.close();
} catch (Exception e) {
e.printStackTrace();
}
Toast.makeText(getApplicationContext(), "Name Added", Toast.LENGTH_SHORT).show();
MainActivity.ID++;
startActivity(getIntent());
MainActivity.face_detected = false;
MainActivity.pictureTaken = false;
MainActivity.recognized = false;
// Log.i("Ajay","String : " + current_name);
} else if (v.equals(findViewById(R.id.take_picture))) {
i = new Intent(MainActivity.this, Sample3Native.class);
startActivity(i);
}
}
}
}
Ravi.. 8
检查你的进口声明
import android.R;
它应该是
import yourpackage.R;
Kishore Jeth.. 5
你导入错了 R.java
删除 import android.R;并导入com.example.altaf.opencv_test.R
R.java是生成文件Id's的资源,如中string,layout.如果这些res文件中存在问题,则R.java不会生成.
检查你的进口声明
import android.R;
它应该是
import yourpackage.R;
你导入错了 R.java
删除 import android.R;并导入com.example.altaf.opencv_test.R
R.java是生成文件Id's的资源,如中string,layout.如果这些res文件中存在问题,则R.java不会生成.
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