Example usage for android.graphics YuvImage YuvImage

Introduction

In this page you can find the example usage for android.graphics YuvImage YuvImage.

Prototype

public YuvImage(byte[] yuv, int format, int width, int height, int[] strides) 

Source Link

Document

Construct an YuvImage.

Usage

From source file:Main.java

public static Bitmap yuv2bitmap(byte[] data, int width, int height) {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    YuvImage yuvImage = new YuvImage(data, ImageFormat.NV21, width, height, null);
    yuvImage.compressToJpeg(new android.graphics.Rect(0, 0, width, height), 100, out);
    byte[] imageBytes = out.toByteArray();
    Bitmap bitmap = BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length);

    // rotate/*  ww w  . j  a  v  a  2  s  .  c om*/
    Matrix matrix = new Matrix();
    matrix.postRotate(90);
    Bitmap dst = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    return dst;
}

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From source file:Main.java

public static Bitmap createBitmapFromByteArray(byte[] data, Size previewSize) {
    YuvImage yuvimage = new YuvImage(data, ImageFormat.NV21, previewSize.width, previewSize.height, null);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    yuvimage.compressToJpeg(new Rect(0, 0, previewSize.width, previewSize.height), 80, baos);
    byte[] jdata = baos.toByteArray();
    BitmapFactory.Options opt = new BitmapFactory.Options();
    opt.inMutable = true;/*from  ww w . ja  v  a2s.  c o  m*/
    Bitmap bitmap = BitmapFactory.decodeByteArray(jdata, 0, jdata.length, opt);

    Matrix matrix = new Matrix();
    matrix.postRotate(-90);

    return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
}

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From source file:Main.java

public static byte[] createFromNV21(@NonNull final byte[] data, final int width, final int height, int rotation,
        final Rect croppingRect) throws IOException {
    byte[] rotated = rotateNV21(data, width, height, rotation);
    final int rotatedWidth = rotation % 180 > 0 ? height : width;
    final int rotatedHeight = rotation % 180 > 0 ? width : height;
    YuvImage previewImage = new YuvImage(rotated, ImageFormat.NV21, rotatedWidth, rotatedHeight, null);

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    previewImage.compressToJpeg(croppingRect, 80, outputStream);
    byte[] bytes = outputStream.toByteArray();
    outputStream.close();/*from   www.  j  av  a2  s. c o m*/
    return bytes;
}

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From source file:Main.java

public static byte[] createFromNV21(@NonNull final byte[] data, final int width, final int height, int rotation,
        final Rect croppingRect, final boolean flipHorizontal) throws IOException {
    byte[] rotated = rotateNV21(data, width, height, rotation, flipHorizontal);
    final int rotatedWidth = rotation % 180 > 0 ? height : width;
    final int rotatedHeight = rotation % 180 > 0 ? width : height;
    YuvImage previewImage = new YuvImage(rotated, ImageFormat.NV21, rotatedWidth, rotatedHeight, null);

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    previewImage.compressToJpeg(croppingRect, 80, outputStream);
    byte[] bytes = outputStream.toByteArray();
    outputStream.close();//from   ww w  . j av a 2 s .  c  o m
    return bytes;
}

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From source file:Main.java

public static Bitmap yuv2Bitmap(byte[] data, int width, int height) {
    final YuvImage image = new YuvImage(data, ImageFormat.NV21, width, height, null);
    ByteArrayOutputStream os = new ByteArrayOutputStream(data.length);
    if (!image.compressToJpeg(new Rect(0, 0, width, height), 100, os)) {
        return null;
    }/*  w  w  w  . j  a va 2  s .  c  o  m*/
    byte[] tmp = os.toByteArray();
    Bitmap bitmap = BitmapFactory.decodeByteArray(tmp, 0, tmp.length);
    return bitmap;
}

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From source file:Main.java

public static String savetoJPEG(byte[] data, int width, int height, String file) {
    Rect frame = new Rect(0, 0, width, height);
    YuvImage img = new YuvImage(data, ImageFormat.NV21, width, height, null);
    OutputStream os = null;/*from   ww w .jav  a2  s. c o  m*/
    File jpgfile = new File(file);
    try {
        os = new FileOutputStream(jpgfile);
        img.compressToJpeg(frame, 100, os);
        os.flush();
        os.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return jpgfile.getPath();
}

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From source file:Main.java

@SuppressLint("NewApi")
public static Bitmap NV21ToRGBABitmap(byte[] nv21, int width, int height, Context context) {

    TimingLogger timings = new TimingLogger(TIMING_LOG_TAG, "NV21ToRGBABitmap");

    Rect rect = new Rect(0, 0, width, height);

    try {/*  w w  w  .ja  v  a 2s  . c  o m*/
        Class.forName("android.renderscript.Element$DataKind").getField("PIXEL_YUV");
        Class.forName("android.renderscript.ScriptIntrinsicYuvToRGB");
        byte[] imageData = nv21;
        if (mRS == null) {
            mRS = RenderScript.create(context);
            mYuvToRgb = ScriptIntrinsicYuvToRGB.create(mRS, Element.U8_4(mRS));
            Type.Builder tb = new Type.Builder(mRS,
                    Element.createPixel(mRS, Element.DataType.UNSIGNED_8, Element.DataKind.PIXEL_YUV));
            tb.setX(width);
            tb.setY(height);
            tb.setMipmaps(false);
            tb.setYuvFormat(ImageFormat.NV21);
            ain = Allocation.createTyped(mRS, tb.create(), Allocation.USAGE_SCRIPT);
            timings.addSplit("Prepare for ain");
            Type.Builder tb2 = new Type.Builder(mRS, Element.RGBA_8888(mRS));
            tb2.setX(width);
            tb2.setY(height);
            tb2.setMipmaps(false);
            aOut = Allocation.createTyped(mRS, tb2.create(), Allocation.USAGE_SCRIPT & Allocation.USAGE_SHARED);
            timings.addSplit("Prepare for aOut");
            bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            timings.addSplit("Create Bitmap");
        }
        ain.copyFrom(imageData);
        timings.addSplit("ain copyFrom");
        mYuvToRgb.setInput(ain);
        timings.addSplit("setInput ain");
        mYuvToRgb.forEach(aOut);
        timings.addSplit("NV21 to ARGB forEach");
        aOut.copyTo(bitmap);
        timings.addSplit("Allocation to Bitmap");
    } catch (Exception e) {
        YuvImage yuvImage = new YuvImage(nv21, ImageFormat.NV21, width, height, null);
        timings.addSplit("NV21 bytes to YuvImage");

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        yuvImage.compressToJpeg(rect, 90, baos);
        byte[] cur = baos.toByteArray();
        timings.addSplit("YuvImage crop and compress to Jpeg Bytes");

        bitmap = BitmapFactory.decodeByteArray(cur, 0, cur.length);
        timings.addSplit("Jpeg Bytes to Bitmap");
    }

    timings.dumpToLog();
    return bitmap;
}

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From source file:Main.java

@SuppressLint("NewApi")
public static Bitmap NV21ToRGBABitmap(byte[] nv21, int width, int height, Context context) {

    TimingLogger timings = new TimingLogger(TIMING_LOG_TAG, "NV21ToRGBABitmap");

    Rect rect = new Rect(0, 0, width, height);

    try {/* ww  w.  j ava  2  s .c o m*/
        Class.forName("android.renderscript.Element$DataKind").getField("PIXEL_YUV");
        Class.forName("android.renderscript.ScriptIntrinsicYuvToRGB");
        byte[] imageData = nv21;
        if (mRS == null) {
            mRS = RenderScript.create(context);
            mYuvToRgb = ScriptIntrinsicYuvToRGB.create(mRS, Element.U8_4(mRS));
            Type.Builder tb = new Type.Builder(mRS,
                    Element.createPixel(mRS, Element.DataType.UNSIGNED_8, Element.DataKind.PIXEL_YUV));
            tb.setX(width);
            tb.setY(height);
            tb.setMipmaps(false);
            tb.setYuvFormat(ImageFormat.NV21);
            ain = Allocation.createTyped(mRS, tb.create(), Allocation.USAGE_SCRIPT);
            timings.addSplit("Prepare for ain");
            Type.Builder tb2 = new Type.Builder(mRS, Element.RGBA_8888(mRS));
            tb2.setX(width);
            tb2.setY(height);
            tb2.setMipmaps(false);
            aOut = Allocation.createTyped(mRS, tb2.create(), Allocation.USAGE_SCRIPT & Allocation.USAGE_SHARED);
            timings.addSplit("Prepare for aOut");
            bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);
            timings.addSplit("Create Bitmap");
        }
        ain.copyFrom(imageData);
        timings.addSplit("ain copyFrom");
        mYuvToRgb.setInput(ain);
        timings.addSplit("setInput ain");
        mYuvToRgb.forEach(aOut);
        timings.addSplit("NV21 to ARGB forEach");
        aOut.copyTo(bitmap);
        timings.addSplit("Allocation to Bitmap");
    } catch (Exception e) {
        YuvImage yuvImage = new YuvImage(nv21, ImageFormat.NV21, width, height, null);
        timings.addSplit("NV21 bytes to YuvImage");

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        yuvImage.compressToJpeg(rect, 90, baos);
        byte[] cur = baos.toByteArray();
        timings.addSplit("YuvImage crop and compress to Jpeg Bytes");

        bitmap = BitmapFactory.decodeByteArray(cur, 0, cur.length);
        timings.addSplit("Jpeg Bytes to Bitmap");
    }

    timings.dumpToLog();
    return bitmap;
}

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From source file:Main.java

static public Bitmap NV21ToRGBABitmap(byte[] nv21, int width, int height) {
    YuvImage yuvImage = new YuvImage(nv21, ImageFormat.NV21, width, height, null);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    yuvImage.compressToJpeg(new Rect(0, 0, width, height), 100, baos);
    byte[] cur = baos.toByteArray();
    return BitmapFactory.decodeByteArray(cur, 0, cur.length);
}

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From source file:com.example.android.camera.CameraActivity.java

@Override
protected void onResume() {
    super.onResume();

    Camera.PreviewCallback previewCallback = new Camera.PreviewCallback() {

        @Override/*from   w  w w  .  j  ava  2 s  .  co m*/
        public void onPreviewFrame(byte[] data, Camera camera) {

            if (notRequesting && mPreview.faces.size() >= 1 && imageFormat == ImageFormat.NV21) {

                // Block Request.
                notRequesting = false;

                try {
                    Camera.Parameters parameters = camera.getParameters();
                    Size size = parameters.getPreviewSize();

                    textServerView.setText("Preparing Image to send");
                    YuvImage previewImg = new YuvImage(data, parameters.getPreviewFormat(), size.width,
                            size.height, null);
                    pWidth = previewImg.getWidth();
                    pHeight = previewImg.getHeight();

                    Log.d("face View", "Width: " + pWidth + " x Height: " + pHeight);
                    prepareMatrix(matrix, 0, pWidth, pHeight);
                    List<Rect> foundFaces = getFaces();

                    for (Rect cRect : foundFaces) {
                        // Cropping
                        ByteArrayOutputStream bao = new ByteArrayOutputStream();
                        previewImg.compressToJpeg(cRect, 100, bao);
                        byte[] mydata = bao.toByteArray();

                        // Resizing
                        ByteArrayOutputStream sbao = new ByteArrayOutputStream();
                        Bitmap bm = BitmapFactory.decodeByteArray(mydata, 0, mydata.length);
                        Bitmap sbm = Bitmap.createScaledBitmap(bm, 100, 100, true);
                        bm.recycle();
                        sbm.compress(Bitmap.CompressFormat.JPEG, 100, sbao);
                        byte[] mysdata = sbao.toByteArray();

                        RequestParams params = new RequestParams();
                        params.put("upload", new ByteArrayInputStream(mysdata), "tmp.jpg");

                        textServerView.setText("Sending Image to the Server");

                        FaceMatchClient.post(":8080/match", params, new JsonHttpResponseHandler() {
                            @Override
                            public void onSuccess(JSONArray result) {
                                Log.d("face onSuccess", result.toString());

                                try {
                                    JSONObject myJson = (JSONObject) result.get(0);
                                    float dist = (float) Double.parseDouble(myJson.getString("dist"));
                                    Log.d("distance", "" + dist);
                                    int level = (int) ((1 - dist) * 100);
                                    if (level > previousMatchLevel) {
                                        textView.setText("Match " + level + "% with " + myJson.getString("name")
                                                + " <" + myJson.getString("email") + "> ");

                                        loadImage(myJson.getString("classes"), myJson.getString("username"));
                                    }

                                    previousMatchLevel = level;
                                    trialCounter++;

                                    if (trialCounter < 100 && level < 74) {
                                        textServerView.setText("Retrying...");
                                        notRequesting = true;
                                    } else if (trialCounter == 100) {
                                        textServerView.setText("Fail...");
                                    } else {
                                        textServerView.setText("Found Good Match? If not try again!");
                                        fdButtonClicked = false;
                                        trialCounter = 0;
                                        previousMatchLevel = 0;
                                        mCamera.stopFaceDetection();
                                        button.setText("StartFaceDetection");
                                    }

                                } catch (JSONException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();
                                }

                                //                                        informationView.showInfo(myJson);
                            }

                        });
                    }

                    textServerView.setText("POST Sent");
                    textServerView.setText("Awaiting for response");

                } catch (Exception e) {
                    e.printStackTrace();
                    textServerView.setText("Error AsyncPOST");
                }
            }
        }
    };

    // Open the default i.e. the first rear facing camera.
    mCamera = Camera.open();
    mCamera.setPreviewCallback(previewCallback);

    // To use front camera
    //        mCamera = Camera.open(CameraActivity.getFrontCameraId());
    mPreview.setCamera(mCamera);
    parameters = mCamera.getParameters();
    imageFormat = parameters.getPreviewFormat();
    PreviewSize = parameters.getPreviewSize();
}

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