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package tn.rnu.ensi.ReelTimeWatermark;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.opencv.android.BaseLoaderCallback;
import org.opencv.android.CameraBridgeViewBase;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewFrame;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewListener2;
import org.opencv.android.LoaderCallbackInterface;
import org.opencv.android.NativeCameraView;
import org.opencv.android.OpenCVLoader;
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.highgui.Highgui;
import org.opencv.imgproc.Imgproc;
import android.annotation.SuppressLint;
import android.content.ContentValues;
import android.content.Intent;
import android.content.SharedPreferences;
import android.hardware.Camera;
import android.hardware.Camera.CameraInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.preference.PreferenceManager;
import android.provider.MediaStore;
import android.provider.MediaStore.Images;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;
public final class MainActivity extends FragmentActivity implements CvCameraViewListener2 {
// recuperer les preferences partagés
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
//General Settings
private String visibility= preferences.getString("preferences_visibility","Visible");
private String type= preferences.getString("preferences_type", "text");
private String textWatermark=preferences.getString("textWaterMark", "iTesLab-ENSI");
private String imageWatermark=preferences.getString("imagePicker", "ii");
private Integer opacity=preferences.getInt ("opacityWatermark", 25);
// A tag for log output.
private static final String TAG = "MainActivity";
// A key for storing the index of the active camera.
private static final String STATE_CAMERA_INDEX = "cameraIndex";
// The index of the active camera.
private int mCameraIndex;
// Whether the active camera is front-facing.
// If so, the camera view should be mirrored.
private boolean mIsCameraFrontFacing;
// The number of cameras on the device.
private int mNumCameras;
// The camera view.
private CameraBridgeViewBase mCameraView;
// Whether the next camera frame should be saved as a photo.
private boolean mIsPhotoPending;
// A matrix that is used when saving photos.
private Mat mBgr;
// Whether an asynchronous menu action is in progress.
// If so, menu interaction should be disabled.
private boolean mIsMenuLocked;
// The OpenCV loader callback.
private BaseLoaderCallback mLoaderCallback =
new BaseLoaderCallback(this) {
@Override
public void onManagerConnected(final int status) {
switch (status) {
case LoaderCallbackInterface.SUCCESS:
Log.d(TAG, "OpenCV loaded successfully");
mCameraView.enableView();
mBgr = new Mat();
break;
default:
super.onManagerConnected(status);
break;
}
}
};
@SuppressLint("NewApi")
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final Window window = getWindow();
window.addFlags(
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
if (savedInstanceState != null) {
mCameraIndex = savedInstanceState.getInt(
STATE_CAMERA_INDEX, 0);
} else {
mCameraIndex = 0;
}
if (Build.VERSION.SDK_INT >=
Build.VERSION_CODES.GINGERBREAD) {
CameraInfo cameraInfo = new CameraInfo();
Camera.getCameraInfo(mCameraIndex, cameraInfo);
mIsCameraFrontFacing =
(cameraInfo.facing ==
CameraInfo.CAMERA_FACING_FRONT);
mNumCameras = Camera.getNumberOfCameras();
} else { // pre-Gingerbread
// Assume there is only 1 camera and it is rear-facing.
mIsCameraFrontFacing = false;
mNumCameras = 1;
}
mCameraView = new NativeCameraView(this, mCameraIndex);
mCameraView.setCvCameraViewListener(this);
setContentView(mCameraView);
}
public void onSaveInstanceState(Bundle savedInstanceState) {
// Save the current camera index.
savedInstanceState.putInt(STATE_CAMERA_INDEX, mCameraIndex);
super.onSaveInstanceState(savedInstanceState);
}
@Override
public void onPause() {
if (mCameraView != null) {
mCameraView.disableView();
}
super.onPause();
}
@Override
public void onResume() {
super.onResume();
OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_9,this, mLoaderCallback);
mIsMenuLocked = false;
}
@Override
public void onDestroy() {
super.onDestroy();
if (mCameraView != null) {
mCameraView.disableView();
}
}
@Override
public boolean onCreateOptionsMenu(final Menu menu) {
getMenuInflater().inflate(R.menu.action_bar, menu);
if (mNumCameras < 2) {
// Remove the option to switch cameras, since there is
// only 1.
menu.removeItem(R.id.change_camera);
}
return true;
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
if (mIsMenuLocked) {
return true;
}
switch (item.getItemId()) {
case R.id.change_camera:
mIsMenuLocked = true;
mCameraIndex++;
if (mCameraIndex == mNumCameras) {
mCameraIndex = 0;
}
recreate();
return true;
case R.id.take_photo:
mIsMenuLocked = true;
mIsPhotoPending = true;
return true;
case R.id.change_settings:
mIsMenuLocked = true;
Intent settingsActivity = new Intent(MainActivity.this,SettingsActivity.class);
startActivity(settingsActivity);
return true;
case R.id.par_lot:
mIsMenuLocked = true;
Intent parLotActivity = new Intent(MainActivity.this,ParLotActivity.class);
startActivity(parLotActivity);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onCameraViewStarted(final int width,
final int height) {
}
@Override
public void onCameraViewStopped() {
}
@Override
public Mat onCameraFrame(final CvCameraViewFrame inputFrame) {
final Mat rgba = inputFrame.rgba();
if (mIsPhotoPending) {
mIsPhotoPending = false;
takePhoto(rgba);
}
if (mIsCameraFrontFacing) {
// Mirror (horizontally flip) the preview.
Core.flip(rgba, rgba, 1);
}
return rgba;
}
private void takePhoto(final Mat rgba) {
// Determine the path and metadata for the photo.
final long currentTimeMillis = System.currentTimeMillis();
final String appName = getString(R.string.app_name);
final String galleryPath =Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString();
final String albumPath = galleryPath + "/" + appName;
final String photoPath = albumPath + "/"+ currentTimeMillis + ".png";
final ContentValues values = new ContentValues();
values.put(MediaStore.MediaColumns.DATA, photoPath);
values.put(Images.Media.MIME_TYPE,LabActivity.PHOTO_MIME_TYPE);
values.put(Images.Media.TITLE, appName);
values.put(Images.Media.DESCRIPTION, appName);
values.put(Images.Media.DATE_TAKEN, currentTimeMillis);
// Ensure that the album directory exists.
File album = new File(albumPath);
if (!album.isDirectory() && !album.mkdirs()) {
Log.e(TAG, "Failed to create album directory at " +albumPath);
onTakePhotoFailed();
return;
}
// Try to create the photo.
Imgproc.cvtColor(rgba, mBgr, Imgproc.COLOR_RGBA2BGR, 3);
if ( visibility=="Visible") {
if (type=="text") {
visibleTextWatermark(mBgr);
}else {
visibleImageWatermark(mBgr);
}
}else if (visibility=="Invisible") {
if (type=="text") {
invisibleTextWatermark(mBgr);
}else {
invisibleImageWatermark(mBgr);
}
}
if (!Highgui.imwrite(photoPath, mBgr)) {
Log.e(TAG, "Failed to save photo to " + photoPath);
onTakePhotoFailed();
}
Log.d(TAG, "Photo saved successfully to " + photoPath);
// Try to insert the photo into the MediaStore.
Uri uri;
try {
uri = getContentResolver().insert(Images.Media.EXTERNAL_CONTENT_URI, values);
} catch (final Exception e) {
Log.e(TAG, "Failed to insert photo into MediaStore");
e.printStackTrace();
File photo = new File(photoPath);
if (!photo.delete()) {
Log.e(TAG, "Failed to delete non-inserted photo");
}
onTakePhotoFailed();
return;
}
// Open the photo in LabActivity.
final Intent labActivity = new Intent(MainActivity.this, LabActivity.class);
labActivity.putExtra(LabActivity.EXTRA_PHOTO_URI, uri);
labActivity.putExtra(LabActivity.EXTRA_PHOTO_DATA_PATH,photoPath);
startActivity(labActivity);
}
private void onTakePhotoFailed() {
mIsMenuLocked = false;
final String errorMessage =getString(R.string.photo_error_message);
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, errorMessage,Toast.LENGTH_SHORT).show();
}
});
}
private void visibleImageWatermark(Mat img){
Mat watermarkImage= Highgui.imread(imageWatermark);
float alpha= opacity/100;
if (watermarkImage.rows()>img.rows()||watermarkImage.cols()>img.cols()) {
Imgproc.resize(watermarkImage, watermarkImage, img.size());
}
Rect rectWatermark=new Rect(0,0,watermarkImage.cols(),watermarkImage.rows());
Core.addWeighted(img.submat(rectWatermark), 1-alpha, watermarkImage,
alpha, 1, img.submat(rectWatermark));
}
private void visibleTextWatermark(Mat img){
float alpha= opacity/100;
Scalar color=new Scalar(255);
Core.putText(img, textWatermark,
new Point(img.rows()/2,img.cols()/2),
Core.FONT_HERSHEY_COMPLEX, alpha, color);
}
private void invisibleImageWatermark(Mat img){
Mat watermarkImage= Highgui.imread(imageWatermark);
List<Mat> channelsOriginal= new ArrayList<Mat>(3);
Core.split(img, channelsOriginal);
Mat mR=channelsOriginal.get(0); mR.convertTo(mR, CvType.CV_64FC1); Core.dft(mR,mR);
Mat mG=channelsOriginal.get(1); mG.convertTo(mG, CvType.CV_64FC1); Core.dft(mG,mG);
Mat mB=channelsOriginal.get(2); mB.convertTo(mB, CvType.CV_64FC1); Core.dft(mB, mB);
Imgproc.resize(watermarkImage, watermarkImage, img.size());
List<Mat> channelsWater= new ArrayList<Mat>(3);
Core.split(watermarkImage, channelsWater);
Mat mR1=channelsWater.get(0); mR1.convertTo(mR1, CvType.CV_64FC1); Core.dft(mR1,mR1);
Mat mG1=channelsWater.get(1); mG1.convertTo(mG1, CvType.CV_64FC1); Core.dft(mG1,mG1);
Mat mB1=channelsWater.get(2); mB1.convertTo(mB1, CvType.CV_64FC1); Core.dft(mB1, mB1);
Scalar alpha=new Scalar(0.03);
Core.multiply(mR1, alpha, mR1);
Core.multiply(mG1, alpha, mG1);
Core.multiply(mB1, alpha, mB1);
Core.add(mR, mR1, mR); Core.idft(mR,mR); mR.convertTo(mR, CvType.CV_8UC1);
Core.add(mG, mG1, mG); Core.idft(mG,mG); mG.convertTo(mG, CvType.CV_8UC1);
Core.add(mB, mB1, mB); Core.idft(mB,mB); mB.convertTo(mB, CvType.CV_8UC1);
Core.merge(channelsOriginal, img);
}
private void invisibleTextWatermark(Mat img){
}
} |
[OpenCv_Android] L'application se bloque en ouvrant la caméra
, malgré qu'aucun erreur syntaxique est découvrit par l'IDE (eclipse).
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