List of usage examples for org.opencv.android Utils matToBitmap
public static void matToBitmap(Mat mat, Bitmap bmp)
From source file:com.example.colordetector.CamMainActivity.java
License:Apache License
public void takePicture(View view) { // Make bitmaps to display images and (if the user want) save them on storage memory bitmap = Bitmap.createBitmap(camWidth, camHeight, Bitmap.Config.ARGB_8888); Utils.matToBitmap(rgbFrame, bitmap); bitmapMask = Bitmap.createBitmap(camWidth, camHeight, Bitmap.Config.ARGB_8888); Utils.matToBitmap(filteredFrame, bitmapMask); // Showing the image at the user, and ask if save them or not; the response will be processed on method onActivityResult Intent intent = new Intent(this, CapturedFrameActivity.class); startActivityForResult(intent, 1);//from w w w . ja v a 2s . co m }
From source file:com.example.root.dipproj.MainActivity.java
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == RESULT_OK) { if (requestCode == 1) { File f = new File(Environment.getExternalStorageDirectory().toString()); for (File temp : f.listFiles()) { if (temp.getName().equals("temp.jpg")) { f = temp;/* w ww .j a va 2 s . com*/ break; } } try { Bitmap bitmap; BitmapFactory.Options bitmapOptions = new BitmapFactory.Options(); bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(), bitmapOptions); viewImage.setImageBitmap(bitmap); String path = android.os.Environment.getExternalStorageDirectory() + File.separator + "Phoenix" + File.separator + "default"; f.delete(); OutputStream outFile = null; File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg"); try { outFile = new FileOutputStream(file); bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile); outFile.flush(); outFile.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } catch (Exception e) { e.printStackTrace(); } } else if (requestCode == 2) { Uri selectedImage = data.getData(); String[] filePath = { MediaStore.Images.Media.DATA }; Cursor c = getContentResolver().query(selectedImage, filePath, null, null, null); c.moveToFirst(); int columnIndex = c.getColumnIndex(filePath[0]); String picturePath = c.getString(columnIndex); c.close(); Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath)); Log.w("path of image", picturePath + ""); Mat imgMat = new Mat(); Mat imgMat2 = new Mat(); Mat imgMat3 = new Mat(); Utils.bitmapToMat(thumbnail, imgMat); Imgproc.cvtColor(imgMat, imgMat, Imgproc.COLOR_RGB2GRAY); org.opencv.core.Size s = new Size(3, 3); Imgproc.createCLAHE(); Imgproc.GaussianBlur(imgMat, imgMat, s, 2); Imgproc.erode(imgMat, imgMat2, Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(2, 2))); Imgproc.dilate(imgMat2, imgMat3, Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(2, 2))); Imgproc.Sobel(imgMat, imgMat, CvType.CV_8UC1, 1, 0); Core.absdiff(imgMat, imgMat3, imgMat); Imgproc.threshold(imgMat, imgMat, 123, 255, Imgproc.THRESH_OTSU); Utils.matToBitmap(imgMat, thumbnail); viewImage.setImageBitmap(thumbnail); saveBitmaptoSDCard(thumbnail); } } }
From source file:com.example.thibautg.libreaudioview.VideoProcessing.java
License:Open Source License
/** * * @param data/*ww w. java 2 s . c om*/ * @param width * @param height * @param bmp */ public void convertByteArrayToBitmap(byte[] data, int width, int height, Bitmap bmp) { //Log.i(TAG, "convertByteArrayToBitmap"); Mat usedMat = mOutputGrayMat; //Mat usedMat = mInputGray try { Imgproc.cvtColor(usedMat, mRgba, Imgproc.COLOR_GRAY2RGBA); Utils.matToBitmap(mRgba, bmp); } catch (CvException e) { Log.d("Exception", e.getMessage()); } }
From source file:com.github.mbillingr.correlationcheck.ImageProcessor.java
License:Open Source License
Bitmap matToBitmap(Mat input) {
if (input == null) {
return Bitmap.createBitmap(0, 0, Bitmap.Config.ARGB_8888);
}/* ww w. ja v a 2s . c om*/
Mat tmp = new Mat();
if (input.channels() == 1) {
Imgproc.cvtColor(input, tmp, Imgproc.COLOR_GRAY2RGB);
} else {
Imgproc.cvtColor(input, tmp, Imgproc.COLOR_BGR2RGB);
}
Core.transpose(tmp, tmp);
Core.flip(tmp, tmp, 1);
Bitmap bm = Bitmap.createBitmap(tmp.cols(), tmp.rows(), Bitmap.Config.ARGB_8888);
Utils.matToBitmap(tmp, bm);
return bm;
}
From source file:com.joravasal.keyface.EigenFacesActivity.java
License:Open Source License
@Override public void onCreate(Bundle savedInstanceState) { Log.i("eigenFacesActivity::", "OnCreate"); super.onCreate(savedInstanceState); setContentView(R.layout.eigenfaces); setTitle("Eigenfaces"); Mat aver = ((PCAfaceRecog) KeyFaceActivity.recogAlgorithm).getAverage(); Mat faces = ((PCAfaceRecog) KeyFaceActivity.recogAlgorithm).getEigenFaces(); int size = new Integer(KeyFaceActivity.prefs.getString("savedFaceSize", "200")); Mat aux = new Mat(); aver = aver.reshape(1, size);//from w ww. j av a 2 s . co m //aver.convertTo(aux, ); aver = toGrayscale(aver); average = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); Imgproc.cvtColor(aver, aux, Imgproc.COLOR_GRAY2RGBA, 4); Utils.matToBitmap(aux, average); LinearLayout layout = (LinearLayout) findViewById(id.eigenFacesHorizontalLayout); TextView avrgImgTV = new TextView(getApplicationContext()); avrgImgTV.setText("Average image:"); avrgImgTV.setPadding(5, 10, 10, 20); avrgImgTV.setGravity(Gravity.CENTER); TextView eigenfacesImgsTV = new TextView(getApplicationContext()); eigenfacesImgsTV.setText("Eigenfaces:"); eigenfacesImgsTV.setPadding(5, 10, 10, 20); eigenfacesImgsTV.setGravity(Gravity.CENTER); ImageView imgV = new ImageView(getApplicationContext()); imgV.setClickable(false); imgV.setVisibility(0); imgV.setPadding(0, 10, 10, 20); imgV.setImageBitmap(average); layout.addView(avrgImgTV); layout.addView(imgV); layout.addView(eigenfacesImgsTV); LinkedList<ImageView> variables = new LinkedList<ImageView>(); eigenfacesList = new LinkedList<Bitmap>(); for (int i = 0; i < faces.rows(); i++) { variables.add(new ImageView(getApplicationContext())); eigenfacesList.add(Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888)); aux = new Mat(); aux = faces.row(i).reshape(1, size); aux = toGrayscale(aux); Mat auxGreyC4 = new Mat(); Imgproc.cvtColor(aux, auxGreyC4, Imgproc.COLOR_GRAY2RGBA, 4); Utils.matToBitmap(auxGreyC4, eigenfacesList.get(i)); variables.get(i).setClickable(false); variables.get(i).setVisibility(0); variables.get(i).setPadding(0, 10, 10, 20); variables.get(i).setImageBitmap(eigenfacesList.get(i)); layout.addView(variables.get(i)); } Button save = (Button) findViewById(id.saveEigenfacesB); save.setOnClickListener(this); }
From source file:com.joravasal.keyface.FindFacesView.java
License:Open Source License
@Override protected Bitmap processFrame(VideoCapture camera) { //Log.i(tag,"Processing frame for our delight"); Mat mRgbaAux = new Mat(); Mat mGrayAux = new Mat(); camera.retrieve(mRgbaAux, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA); camera.retrieve(mGrayAux, Highgui.CV_CAP_ANDROID_GREY_FRAME); //Correct the direction of the image mRgba = correctCameraImage(mRgbaAux); mGray = correctCameraImage(mGrayAux); AlgorithmReturnValue resExample = null; //We look for faces in the captured images if (cascade != null) { int faceSize = Math.round(mGray.rows() * KeyFaceActivity.minFaceSize); List<Rect> faces = new LinkedList<Rect>(); try {// www.jav a 2s . co m cascade.detectMultiScale(mGray, faces, 1.1, 2, 2, new Size(faceSize, faceSize)); } catch (CvException e) { System.err.println(e.getMessage()); } for (Rect r : faces) { //For each face //The Rectangle commented is the area that will be used to check the face, //but an ellipse is shown instead, I think it looks better. //Core.rectangle(mRgba, r.tl(), r.br(), new Scalar(0,0,255,100), 3); String nombre = null; // We try to recognize it AlgorithmReturnValue res = KeyFaceActivity.recogAlgorithm.recognizeFace(mGray.submat(r)); resExample = res; if (res.getResult() != -1) { //if it worked, we find the name nombre = findName(res.getResult()); } Point center = new Point(r.x + (r.width / 2), r.y + (r.height / 2)); //If nombre is null we have no name, thus is unrecognized and draw a red circle, together with the text "Unknown" if (nombre == null) { Core.ellipse(mRgba, center, new Size(r.width / 2 - 5, r.height / 2 + 20), 0, 0, 360, new Scalar(255, 0, 0, 30), 3); Core.rectangle(mRgba, new Point(r.x + 45, r.y + r.height + 20), new Point(r.x + 200, r.y + r.height + 60), new Scalar(70, 50, 50, 255), Core.FILLED); Core.putText(mRgba, "Unknown", new Point(r.x + 50, r.y + r.height + 50), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(200, 200, 200, 100)); //Check if the user is tryaing to save a new face if (KeyFaceActivity.addingFaces && faces.size() == 1) { //All is in order, we save a new image and update our account of faces. We update the recognizer data as well. addFaceToDB(mGray, r, savedFaces); KeyFaceActivity.toastHandler.post(new Runnable() { public void run() { KeyFaceActivity.prefs.edit() .putInt("savedFaces", KeyFaceActivity.prefs.getInt("savedFaces", 0) + 1) .apply(); } }); /*KeyFaceActivity.lock.lock(); try { KeyFaceActivity.faceAdded = true; KeyFaceActivity.addingFaces = false; KeyFaceActivity.condition.signalAll(); } finally { KeyFaceActivity.lock.unlock(); } */ if (!KeyFaceActivity.recogAlgorithm.updateData(false)) { System.err.println("Couldn't update the recognition algorithm with the new picture."); } KeyFaceActivity.addingFaces = false; KeyFaceActivity.toastHandler.post(new Runnable() { public void run() { Toast.makeText(KeyFaceActivity.globalappcontext, "Face saved successfully!", Toast.LENGTH_SHORT).show(); } }); } //The user tried to save a face when there was more than one, it fails and sends a message to the user. else if (KeyFaceActivity.addingFaces && faces.size() > 1) { KeyFaceActivity.toastHandler.post(new Runnable() { public void run() { Toast.makeText(KeyFaceActivity.globalappcontext, "Make sure there is only one face!", Toast.LENGTH_SHORT).show(); } }); KeyFaceActivity.addingFaces = false; } } else { //We know this face! Core.ellipse(mRgba, center, new Size(r.width / 2 - 5, r.height / 2 + 20), 0, 0, 360, new Scalar(0, 255, 0, 100), 3); Core.rectangle(mRgba, new Point(r.x + 45, r.y + r.height + 20), new Point(r.x + 200, r.y + r.height + 60), new Scalar(50, 70, 50, 255), Core.FILLED); Core.putText(mRgba, nombre, new Point(r.x + 50, r.y + r.height + 50), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(0, 255, 0, 100)); if (KeyFaceActivity.addingFaces && faces.size() == 1) { //If the user tries to save a face when it is already known we don let him. KeyFaceActivity.toastHandler.post(new Runnable() { public void run() { Toast.makeText(KeyFaceActivity.globalappcontext, "This face is already known!", Toast.LENGTH_SHORT).show(); } }); KeyFaceActivity.addingFaces = false; } } } //If there is no face we tell the user there was a mistake if (KeyFaceActivity.addingFaces && faces.size() <= 0) { KeyFaceActivity.toastHandler.post(new Runnable() { public void run() { Toast.makeText(KeyFaceActivity.globalappcontext, "No face found!", Toast.LENGTH_SHORT) .show(); } }); KeyFaceActivity.addingFaces = false; } } savedFaces = KeyFaceActivity.prefs.getInt("savedFaces", savedFaces); if (KeyFaceActivity.prefs.getBoolean("showData", false)) { try { if (resExample != null) { //background rectangle for extra info on PCA Core.rectangle(mRgba, new Point(0, mRgba.height() - 100), new Point(mRgba.width(), mRgba.height()), new Scalar(50, 50, 50, 50), Core.FILLED); //Data for closest image Core.putText(mRgba, "1st", new Point(5, mRgba.height() - 80), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); Core.putText(mRgba, Integer.toString(resExample.getClosestImage()), new Point(5, mRgba.height() - 55), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); Core.putText(mRgba, Double.toString(resExample.getDistClosestImage() / 100000).substring(0, 6), new Point(5, mRgba.height() - 30), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); //Data for second closest image Core.putText(mRgba, "2nd", new Point(180, mRgba.height() - 80), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); Core.putText(mRgba, Integer.toString(resExample.getSecondClosestImage()), new Point(180, mRgba.height() - 55), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); Core.putText(mRgba, Double.toString(resExample.getDistSecondClosestImage() / 100000).substring(0, 6), new Point(180, mRgba.height() - 30), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); //Data for farthest image Core.putText(mRgba, "Last", new Point(355, mRgba.height() - 80), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); Core.putText(mRgba, Integer.toString(resExample.getFarthestImage()), new Point(355, mRgba.height() - 55), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); Core.putText(mRgba, Double.toString(resExample.getDistFarthestImage() / 100000).substring(0, 6), new Point(355, mRgba.height() - 30), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); //Num images and threshold Core.putText(mRgba, "Images:" + savedFaces, new Point(15, mRgba.height() - 5), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); Core.putText(mRgba, "Th:" + Double.toString(resExample.getThreshold() / 100000).substring(0, Math.min(6, Double.toString(resExample.getThreshold() / 100000).length())), new Point(240, mRgba.height() - 5), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); } else { Core.rectangle(mRgba, new Point(0, mRgba.height() - 30), new Point(200, mRgba.height()), new Scalar(50, 50, 50, 50), Core.FILLED); Core.putText(mRgba, "Images:" + savedFaces, new Point(15, mRgba.height() - 5), Core.FONT_HERSHEY_PLAIN, 2, new Scalar(250, 250, 250, 200)); } } catch (Exception e) { e.printStackTrace(); } } Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888); if (Utils.matToBitmap(mRgba, bmp)) return bmp; bmp.recycle(); return null; }
From source file:com.joravasal.keyface.FindFacesView.java
License:Open Source License
private void addFaceToDB(Mat mRGBA, Rect r, int numFaces) { //Code to put the face in a bitmap and save it in the phone memory Mat aux = mRGBA.submat(r);/* w w w. j a v a 2s .c o m*/ int saveSize = new Integer(KeyFaceActivity.prefs.getString("savedFaceSize", "200")); //Mat aux2 = new Mat(new Size(saveSize, saveSize), aux.type()); Imgproc.resize(aux, aux, new Size(saveSize, saveSize)); final Bitmap bm = Bitmap.createBitmap(saveSize, saveSize, Bitmap.Config.ARGB_8888); Imgproc.cvtColor(aux, aux, Imgproc.COLOR_GRAY2RGBA, 4); Utils.matToBitmap(aux, bm); try { //Check if our folder exists (where all the photos are) File directory = new File(Environment.getExternalStorageDirectory(), KeyFaceActivity.globalappcontext.getString(R.string.app_dir)); if (!directory.exists() && !directory.mkdirs()) { throw new IOException("Path to app directory could not be opened or created."); } //save image String lfile = Environment.getExternalStorageDirectory().getPath() + "/" + KeyFaceActivity.globalappcontext.getString(R.string.app_dir) + "/Face" + numFaces + ".png"; OutputStream out = new FileOutputStream(lfile); bm.compress(Bitmap.CompressFormat.PNG, 100, out); out.flush(); out.close(); } catch (IOException e) { System.err.println(e.getMessage()); } }
From source file:com.minio.io.alice.MatVideoWriter.java
License:Open Source License
private byte[] captureBitmap(Mat mat) { Bitmap bitmap;/* ww w . j av a 2 s. c o m*/ try { bitmap = Bitmap.createBitmap(mat.cols(), mat.rows(), Bitmap.Config.ARGB_8888); Utils.matToBitmap(mat, bitmap); ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, byteStream); // Convert ByteArrayOutputStream to byte array. Close stream. matByteArray = byteStream.toByteArray(); byteStream.close(); return matByteArray; } catch (Exception ex) { System.out.println(ex.getMessage()); } return null; }
From source file:com.nekomeshi312.whiteboardcorrection.CameraViewFragment.java
License:Open Source License
@Override public void onPreviewFrame(byte[] data, Camera camera) { // TODO Auto-generated method stub if (data == null || mMatYuv.cols() * mMatYuv.rows() != data.length) return;/*from www.j a v a2 s.c o m*/ mMatYuv.put(0, 0, data); //java?Hough? // decodeYUV420SP(mRgb, data, mViewWidth, mViewHeight); // mBmp.setPixels(mRgb, 0, mViewWidth, 0, 0, mViewWidth, mViewHeight); // Utils.bitmapToMat(mBmp, mMatRgba); //Canny -> Hough? // Mat gray = new Mat(mViewHeight, mViewWidth, CvType.CV_8UC1); // Imgproc.cvtColor(mMatRgba, gray, Imgproc.COLOR_BGRA2GRAY, 0); // Imgproc.Canny(gray, gray, 80, 100); // Mat lines = new Mat(); // Imgproc.HoughLinesP(gray, lines, 1, Math.PI/180.0, (int) 50, 100.0, 20.0); // gray.release(); // int lineNum = mLineDetector.lineDetect(mMatYuv, true, mMatRgba, mLines); if (MyDebug.DEBUG) Log.d(LOG_TAG, "line Num = " + lineNum); //?4 ArrayList<Point> points = new ArrayList<Point>(); LineDetectCallback callback = (LineDetectCallback) mParentActivity; if (mWbDetect.detectWhiteBoard(mLines, lineNum, points, mMatRgba)) { mWhiteBoardView.setWhiteBoardCorners(points); if (callback == null) return; callback.onLineDetected(points); if (mLastUnDetectTime > 0) { mTextViewLineDetectErrorMsg.setVisibility(View.INVISIBLE); mLastUnDetectTime = -1; } } else { callback.onLineDetected(null); long currentSec = System.currentTimeMillis(); if (mLastUnDetectTime < 0) {//??????????? mLastUnDetectTime = currentSec; } else if ((currentSec - mLastUnDetectTime) < CHECK_UNDETECT_TIME) {//?????? } else if (mTextViewLineDetectErrorMsg.getVisibility() != View.VISIBLE) {//???? mTextViewLineDetectErrorMsg.setVisibility(View.VISIBLE); } } if (mMatRgba != null) { Utils.matToBitmap(mMatRgba, mBmp); mCameraSurfaceView.invalidate(); } if (mCameraSetting == null) return; if (mCameraSetting.getCamera() == null) return; if (!mCameraSetting.isCameraOpen()) return; mCameraSetting.getCamera().addCallbackBuffer(mBuffer); }
From source file:com.serenegiant.usbcameratest.MainActivity.java
License:Apache License
@Override public boolean onTouchEvent(MotionEvent e) { //?/*from w w w .j a va2 s. c o m*/ if (createTemplateFlag) { if (templateRect.x == -1 || templateRect.y == -1) { templateRect.x = (int) e.getX(); templateRect.y = (int) e.getY(); } else { templateRect.width = (int) e.getX() - templateRect.x; templateRect.height = (int) e.getY() - templateRect.y; } textView1.setText("tl:" + templateRect.tl()); //??? showImg = searchImg.clone(); Imgproc.rectangle(showImg, templateRect.tl(), templateRect.br(), new Scalar(0, 0, 255), 5); Bitmap bitmap = Bitmap.createBitmap(showImg.width(), showImg.height(), Bitmap.Config.ARGB_8888); Utils.matToBitmap(showImg, bitmap); imageView1.setImageBitmap(bitmap); } return true; }