Example usage for android.graphics Bitmap setPixels

Introduction

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

Prototype

public void setPixels(@ColorInt int[] pixels, int offset, int stride, int x, int y, int width, int height) 

Source Link

Document

Replace pixels in the bitmap with the colors in the array.

Usage

From source file:app.axe.imooc.zxing.app.CaptureActivity.java

private Bitmap createQRCode() {
    int QR_WIDTH = 100;
    int QR_HEIGHT = 100;

    try {//w w w . j a  v  a  2  s  .c o  m
        // ?core
        QRCodeWriter writer = new QRCodeWriter();
        String text = Util.getIMEI(this);
        if (text == null || "".equals(text) || text.length() < 1) {
            return null;
        }
        // ?
        BitMatrix martix = writer.encode(text, BarcodeFormat.QR_CODE, QR_WIDTH, QR_HEIGHT);

        System.out.println("w:" + martix.getWidth() + "h:" + martix.getHeight());

        Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, QR_WIDTH, QR_HEIGHT,
                hints);
        int[] pixels = new int[QR_WIDTH * QR_HEIGHT];
        for (int y = 0; y < QR_HEIGHT; y++) {
            for (int x = 0; x < QR_WIDTH; x++) {
                if (bitMatrix.get(x, y)) {
                    pixels[y * QR_WIDTH + x] = 0xff000000;
                } else {
                    pixels[y * QR_WIDTH + x] = 0xffffffff;
                }
            }
        }
        // cheng chen de er wei ma
        Bitmap bitmap = Bitmap.createBitmap(QR_WIDTH, QR_HEIGHT, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, QR_WIDTH, 0, 0, QR_WIDTH, QR_HEIGHT);

        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
    }
    return null;
}

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From source file:com.precisionag.waterplane.MainActivity.java

public void updateColors(Field field) {
    //get level from seekbar
    SeekBar seekBar = (SeekBar) findViewById(R.id.seekBar);
    seekBar.setMax(255);//from ww  w  .  ja v  a  2  s  .c  o  m
    int waterLevel = seekBar.getProgress();

    //update text block
    waterLevelMeters = field.minElevation
            + ((double) waterLevel * (field.maxElevation - field.minElevation) / 255.0);
    TextView waterElevationTextView = (TextView) findViewById(R.id.text);
    String elevation = new DecimalFormat("#.#").format(waterLevelMeters);
    String waterElevationText = "Elevation: " + elevation + "m";
    waterElevationTextView.setText(waterElevationText);

    int width = field.elevationBitmap.getWidth();
    int height = field.elevationBitmap.getHeight();
    int[] pixels = new int[width * height];
    field.elevationBitmap.getPixels(pixels, 0, width, 0, 0, width, height);
    Bitmap bitmap = field.elevationBitmap.copy(field.elevationBitmap.getConfig(), true);

    //test each pixel, if below water level set blue, else set transparent
    for (int i = 0; i < (width * height); i++) {
        if ((pixels[i] & 0x000000FF) < waterLevel) {
            //water is visible, set pixel to blue
            pixels[i] = 0xFF0000FF;
        } else {
            //no water, set pixel transparent
            pixels[i] = 0x00000000;
        }
    }
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);

    //remove old map overlay and create new one
    prevoverlay.remove();

    prevoverlay = createOverlay(bitmap, field.fieldBounds);

}

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From source file:com.yk.notification.util.BitmapUtil.java

/**
 * ?/*from  ww w.ja va2 s  . co m*/
 * 
 * @param bmp
 *            ?
 * @return ??
 */
public static Bitmap convertToBlackWhite(Bitmap bmp) {
    int width = bmp.getWidth();
    int height = bmp.getHeight();
    int[] pixels = new int[width * height];
    bmp.getPixels(pixels, 0, width, 0, 0, width, height);

    int alpha = 0xFF << 24; // bitmap?24
    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            int grey = pixels[width * i + j];

            int red = ((grey & 0x00FF0000) >> 16);
            int green = ((grey & 0x0000FF00) >> 8);
            int blue = (grey & 0x000000FF);

            grey = (int) (red * 0.3 + green * 0.59 + blue * 0.11);
            grey = alpha | (grey << 16) | (grey << 8) | grey;
            pixels[width * i + j] = grey;
        }
    }
    Bitmap newBmp = Bitmap.createBitmap(width, height, Config.RGB_565);
    newBmp.setPixels(pixels, 0, width, 0, 0, width, height);
    return newBmp;
}

---

From source file:com.yk.notification.util.BitmapUtil.java

/**
 * ??/*from   w  ww  .ja va2s.  c  o m*/
 * 
 * @param img
 *            ?Bitmap
 * @return ??
 */
public static Bitmap convertGreyImg(Bitmap img) {
    int width = img.getWidth(); // ??
    int height = img.getHeight(); // ??

    int[] pixels = new int[width * height]; // ???

    img.getPixels(pixels, 0, width, 0, 0, width, height);
    int alpha = 0xFF << 24;
    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            int grey = pixels[width * i + j];

            int red = ((grey & 0x00FF0000) >> 16);
            int green = ((grey & 0x0000FF00) >> 8);
            int blue = (grey & 0x000000FF);

            grey = (int) (red * 0.3 + green * 0.59 + blue * 0.11);
            grey = alpha | (grey << 16) | (grey << 8) | grey;
            pixels[width * i + j] = grey;
        }
    }
    Bitmap result = Bitmap.createBitmap(width, height, Config.RGB_565);
    result.setPixels(pixels, 0, width, 0, 0, width, height);
    return result;
}

---

From source file:Main.java

static Bitmap blurfast(Bitmap bmp, int radius) {
    try {//w  w  w . j av  a2s .  c  om
        Bitmap bitmap = bmp.copy(bmp.getConfig(), true);
        int w = bmp.getWidth();
        int h = bmp.getHeight();
        int[] pix = new int[w * h];
        bmp.getPixels(pix, 0, w, 0, 0, w, h);

        for (int r = radius; r >= 1; r /= 2) {
            for (int i = r; i < h - r; i++) {
                for (int j = r; j < w - r; j++) {
                    int tl = pix[(i - r) * w + j - r];
                    int tr = pix[(i - r) * w + j + r];
                    int tc = pix[(i - r) * w + j];
                    int bl = pix[(i + r) * w + j - r];
                    int br = pix[(i + r) * w + j + r];
                    int bc = pix[(i + r) * w + j];
                    int cl = pix[i * w + j - r];
                    int cr = pix[i * w + j + r];

                    pix[(i * w) + j] = 0xFF000000
                            | (((tl & 0xFF) + (tr & 0xFF) + (tc & 0xFF) + (bl & 0xFF) + (br & 0xFF)
                                    + (bc & 0xFF) + (cl & 0xFF) + (cr & 0xFF)) >> 3) & 0xFF
                            | (((tl & 0xFF00) + (tr & 0xFF00) + (tc & 0xFF00) + (bl & 0xFF00) + (br & 0xFF00)
                                    + (bc & 0xFF00) + (cl & 0xFF00) + (cr & 0xFF00)) >> 3) & 0xFF00
                            | (((tl & 0xFF0000) + (tr & 0xFF0000) + (tc & 0xFF0000) + (bl & 0xFF0000)
                                    + (br & 0xFF0000) + (bc & 0xFF0000) + (cl & 0xFF0000)
                                    + (cr & 0xFF0000)) >> 3) & 0xFF0000;
                }
            }
        }
        bitmap.setPixels(pix, 0, w, 0, 0, w, h);
        return bitmap;
    } catch (Exception e) {
        return bmp;
    }
}

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From source file:at.wada811.gammacorrection.MainActivity.java

protected Bitmap gamma(double gamma) {
    int[] lut = new int[256];
    for (int i = 0; i < lut.length; i++) {
        lut[i] = Math.min((int) Math.round(255 * Math.pow(i / 255.0, 1.0 / gamma)), 255);
    }/*from ww  w. j  av  a  2s  . c  o  m*/
    Bitmap bitmap = BitmapUtils.copy(mBitmap);
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int[] pixels = new int[width * height];
    bitmap.getPixels(pixels, 0, width, 0, 0, width, height);
    for (int w = 0; w < width; w++) {
        for (int h = 0; h < height; h++) {
            int r = 0;
            int g = 0;
            int b = 0;
            int color = pixels[w + h * width];
            r = Color.red(color);
            g = Color.green(color);
            b = Color.blue(color);
            // 
            r = lut[r];
            g = lut[g];
            b = lut[b];
            //
            color = Color.rgb(r, g, b);
            pixels[w + h * width] = color;
        }
    }
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

---

From source file:onion.chat.MainActivity.java

void showQR() {
    String name = db.getName();//ww w. j a  va  2 s .c  o  m
    String txt = "Its Ur's " + tor.getID() + " " + name;

    QRCode qr;

    try {
        //qr = Encoder.encode(txt, ErrorCorrectionLevel.H);
        qr = Encoder.encode(txt, ErrorCorrectionLevel.M);
    } catch (Exception ex) {
        throw new Error(ex);
    }

    ByteMatrix mat = qr.getMatrix();
    int width = mat.getWidth();
    int height = mat.getHeight();
    int[] pixels = new int[width * height];
    for (int y = 0; y < height; y++) {
        int offset = y * width;
        for (int x = 0; x < width; x++) {
            pixels[offset + x] = mat.get(x, y) != 0 ? Color.BLACK : Color.WHITE;
        }
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);

    bitmap = Bitmap.createScaledBitmap(bitmap, bitmap.getWidth() * 8, bitmap.getHeight() * 8, false);

    ImageView view = new ImageView(this);
    view.setImageBitmap(bitmap);

    int pad = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 16,
            getResources().getDisplayMetrics());
    view.setPadding(pad, pad, pad, pad);

    Rect displayRectangle = new Rect();
    Window window = getWindow();
    window.getDecorView().getWindowVisibleDisplayFrame(displayRectangle);
    int s = (int) (Math.min(displayRectangle.width(), displayRectangle.height()) * 0.9);
    view.setMinimumWidth(s);
    view.setMinimumHeight(s);
    new AlertDialog.Builder(this)
            //.setMessage(txt)
            .setView(view).show();
}

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From source file:com.htc.dotdesign.DrawingView.java

public void setAsDotViewTheme() {
    if (mContext == null) {
        return;//from ww  w.j a  v a2s  .com
    }
    Bitmap bitmap = null;
    Bitmap photoARGB = null;
    try {
        bitmap = handlePicture();
        if (bitmap != null) {
            int[] photoData = new int[bitmap.getWidth() * bitmap.getHeight()];
            bitmap.getPixels(photoData, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight());
            photoARGB = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
            photoARGB.setPixels(photoData, 0, photoARGB.getWidth(), 0, 0, photoARGB.getWidth(),
                    photoARGB.getHeight());

            WallpaperMaker wallpaper = new WallpaperMaker();
            mScaledPhoto = wallpaper.convertDotViewWallpaper(photoARGB, 27, 48);
            ByteArrayOutputStream stream = new ByteArrayOutputStream();
            mScaledPhoto.compress(Bitmap.CompressFormat.PNG, 100, stream);
            byte[] byteArray = stream.toByteArray();
            Intent intent = new Intent(DotDesignConstants.NOTIFY_DOTVIEW_TO_UPDATE_WALLPAPER);
            intent.putExtra(DotDesignConstants.EXTRA_BITMAP_ARRAY, byteArray);
            String filename = DotDesignUtil.getFileName() + "DotDrop";
            intent.putExtra(DotDesignConstants.EXTRA_FILE_NAME, filename);
            mContext.sendBroadcast(intent);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (bitmap != null && !bitmap.isRecycled()) {
            bitmap.recycle();
            bitmap = null;
        }
        if (mScaledPhoto != null && !mScaledPhoto.isRecycled()) {
            mScaledPhoto.recycle();
            mScaledPhoto = null;
        }
        if (photoARGB != null && !photoARGB.isRecycled()) {
            photoARGB.recycle();
            photoARGB = null;
        }
    }
    if (mActivity != null) {
        Toast.makeText(mActivity, getResources().getString(R.string.toast_theme_applied), Toast.LENGTH_SHORT)
                .show();
    }
}

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From source file:io.jawg.osmcontributor.ui.utils.BitmapHandler.java

/**
 * Get the white icon corresponding to a poiType.
 *
 * @param poiType the PoiType or null for notes.
 * @return The white icon.//from   ww  w  . java2s .  c  o  m
 */
public Drawable getIconWhite(PoiType poiType) {
    Bitmap myBitmap = BitmapFactory.decodeResource(context.getResources(),
            poiType == null ? R.drawable.open_book : getIconDrawableId(poiType));
    myBitmap = myBitmap.copy(myBitmap.getConfig(), true);

    int[] allpixels = new int[myBitmap.getHeight() * myBitmap.getWidth()];

    myBitmap.getPixels(allpixels, 0, myBitmap.getWidth(), 0, 0, myBitmap.getWidth(), myBitmap.getHeight());

    for (int i = 0; i < myBitmap.getHeight() * myBitmap.getWidth(); i++) {
        if (allpixels[i] != 0) {
            int A = Color.alpha(allpixels[i]);
            // inverting byte for each R/G/B channel
            int R = 255 - Color.red(allpixels[i]);
            int G = 255 - Color.green(allpixels[i]);
            int B = 255 - Color.blue(allpixels[i]);
            // set newly-inverted pixel to output image
            allpixels[i] = Color.argb(A, R, G, B);
        }
    }

    myBitmap.setPixels(allpixels, 0, myBitmap.getWidth(), 0, 0, myBitmap.getWidth(), myBitmap.getHeight());

    return new BitmapDrawable(context.getResources(), myBitmap);
}

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From source file:com.ibm.mil.readyapps.physio.fragments.PainLocationFragment.java

/**
 * Pulls the bitmap image of the body part out of its RelativeLayout, colors it appropriatly,
 * and then tells the zoomLayout where it needs to zoom to. Also swaps the FRONT/BACK buttons
 * for the ADD/DELETE buttons.//from  w  w  w .  jav a 2s. c om
 *
 * @param image the body part the touch occured in.
 */
private void zoomOnImage(RelativeLayout image) {

    Bitmap bitm = ((BitmapDrawable) image.getBackground()).getBitmap();

    Bitmap temp = bitm.copy(bitm.getConfig(), true);
    int[] pixels = new int[temp.getHeight() * temp.getWidth()];

    temp.getPixels(pixels, 0, temp.getWidth(), 0, 0, temp.getWidth(), temp.getHeight());

    for (int i = 0; i < temp.getHeight() * temp.getWidth(); i++) {

        if (pixels[i] != 0) {

            int r, g, b;

            if (!blue) {
                r = Color.red(pixels[i]) + 100;
                if (r > 255) {
                    r = 255;
                }
                g = Color.green(pixels[i]) - 50;
                b = Color.blue(pixels[i]) - 50;
            } else {
                r = Color.red(pixels[i]) - 30;
                g = Color.green(pixels[i]) + 15;
                b = Color.blue(pixels[i]) + 100;
                if (b > 255) {
                    b = 255;
                }

            }
            pixels[i] = Color.argb(Color.alpha(pixels[i]), r, g, b);
        }
    }

    temp.setPixels(pixels, 0, temp.getWidth(), 0, 0, temp.getWidth(), temp.getHeight());
    image.setBackground(new BitmapDrawable(getResources(), temp));

    Rect rect = new Rect();
    image.getGlobalVisibleRect(rect);

    zoomLayout.zoomToRect(rect, 0, getYOffset());
    current = image;
    zoomed = true;
    swapButtons();

    placePointer(rect.centerX(), rect.centerY());

}

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