Example usage for android.graphics Bitmap getWidth

List of usage examples for android.graphics Bitmap getWidth

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Introduction

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

Prototype

public final int getWidth()

Source Link

Document

Returns the bitmap's width

Usage

From source file:Main.java

public static boolean shouldScaleDownBitmap(Context context, Bitmap bitmap) {
    if (context != null && bitmap != null && bitmap.getWidth() > 0 && bitmap.getHeight() > 0) {
        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        Display display = wm.getDefaultDisplay();
        DisplayMetrics metrics = new DisplayMetrics();
        display.getMetrics(metrics);//from w w  w.  j  a v a 2  s.c o m
        int width = metrics.widthPixels;
        int height = metrics.heightPixels;
        return ((width != 0 && width / bitmap.getWidth() < 1)
                || (height != 0 && height / bitmap.getHeight() < 1));
    }
    return false;
}

From source file:Main.java

public static byte[] rgb2YUV(Bitmap bitmap) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int[] pixels = new int[width * height];
    bitmap.getPixels(pixels, 0, width, 0, 0, width, height);

    int len = width * height;
    byte[] yuv = new byte[len * 3 / 2];
    int y, u, v;//from w ww  . j a v  a  2s.c o m
    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            int rgb = pixels[i * width + j] & 0x00FFFFFF;

            int r = rgb & 0xFF;
            int g = (rgb >> 8) & 0xFF;
            int b = (rgb >> 16) & 0xFF;

            y = ((66 * r + 129 * g + 25 * b + 128) >> 8) + 16;
            u = ((-38 * r - 74 * g + 112 * b + 128) >> 8) + 128;
            v = ((112 * r - 94 * g - 18 * b + 128) >> 8) + 128;

            y = y < 16 ? 16 : (y > 255 ? 255 : y);
            u = u < 0 ? 0 : (u > 255 ? 255 : u);
            v = v < 0 ? 0 : (v > 255 ? 255 : v);

            yuv[i * width + j] = (byte) y;
            // yuv[len + (i >> 1) * width + (j & ~1) + 0] = (byte) u;
            // yuv[len + (i >> 1) * width + (j & ~1) + 1] = (byte) v;
        }
    }
    return yuv;
}

From source file:Main.java

public static Bitmap handleImageOldPhoto(Bitmap bm) {
    int width = bm.getWidth();
    int height = bm.getHeight();
    int color;/* w  w w.  j  a  va2 s  . co  m*/
    int r, g, b, a;
    Bitmap bmp = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);
    int[] oldPx = new int[width * height];
    int[] newPx = new int[width * height];
    bm.getPixels(oldPx, 0, width, 0, 0, width, height);
    for (int i = 0; i < width * height; i++) {
        color = oldPx[i];
        r = Color.red(color);
        g = Color.green(color);
        b = Color.blue(color);
        a = Color.alpha(color);

        r = (int) (0.393 * r + 0.769 * g + 0.189 * b);
        g = (int) (0.349 * r + 0.686 * g + 0.168 * b);
        b = (int) (0.272 * r + 0.534 * g + 0.131 * b);
        if (r > 255) {
            r = 255;
        }
        if (g > 255) {
            g = 255;
        }
        if (b > 255) {
            b = 255;
        }
        newPx[i] = Color.argb(a, r, g, b);
    }
    bmp.setPixels(newPx, 0, width, 0, 0, width, height);
    return bmp;

}

From source file:Main.java

/**
 * Method to create a fully-transparent Bitmap using the same size of the source passed as
 * parameter and also the same density.// ww w.  j  a v a2s .  com
 *
 * @param source The original Bitmap.
 * @return A transparent Bitmap with the same size of the source.
 */
public static Bitmap clear(Bitmap source) {
    Bitmap newBitmap = Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight());
    //to erase the color from a Bitmap, I must use a mutable Bitmap!!!!
    Bitmap mutableBitmap = newBitmap.copy(Bitmap.Config.ARGB_8888, true);
    mutableBitmap.eraseColor(Color.TRANSPARENT);
    return mutableBitmap;
}

From source file:Main.java

public static PointF drawBitmapOffset(PointF center, Bitmap bitmap) {
    PointF offset = new PointF();
    if (bitmap == null || bitmap.getWidth() < 0) {
        return center;
    }/* www. j a v  a 2s  . c  om*/
    offset.set(center.x - bitmap.getWidth() / 2, center.y - bitmap.getHeight() / 2);
    return offset;
}

From source file:Main.java

public static Bitmap getCroppedBitmap(Bitmap bitmap) {
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    paint.setAntiAlias(true);/*www  .ja v  a  2  s. c  o  m*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    // canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);
    // return _bmp;
    return output;

}

From source file:Main.java

public static Bitmap zoomBitmap(Bitmap bitmap, int width, int height) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Matrix matrix = new Matrix();
    float scaleWidth = ((float) width / w);
    float scaleHeight = ((float) height / h);
    matrix.postScale(scaleWidth, scaleHeight);
    Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
    return newbmp;
}

From source file:Main.java

public static Bitmap resizeOuterFit(Bitmap src, Rect rect) {

    float aspectRatio = Math.max((float) rect.width() / src.getWidth(),
            (float) rect.height() / src.getHeight());
    int newWidth = (int) (src.getWidth() * aspectRatio);
    int newHeight = (int) (src.getHeight() * aspectRatio);
    return Bitmap.createScaledBitmap(src, newWidth, newHeight, false);
}

From source file:Main.java

public static Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth) {
    final int w = bm.getWidth();
    final int h = bm.getHeight();
    final float sw = ((float) newWidth) / w;
    final float sh = ((float) newHeight) / h;

    Matrix matrix = new Matrix();
    matrix.postScale(sw, sh);// www .  j a  va 2s  .c  o m
    return Bitmap.createBitmap(bm, 0, 0, w, h, matrix, false);
}

From source file:Main.java

/**
 * Create a bitmap which is wrapped to circle
 * (similar to what you can see in G+ profile pic.)
 *
 * @param bitmap Original Bitmap//from www. ja  v  a  2s.co m
 * @return Circled bitmap
 */
public static Bitmap createCircleBitmap(Bitmap bitmap) {
    final int width = bitmap.getWidth();
    final int height = bitmap.getHeight();

    BitmapShader bitmapShader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
    Paint bitmapPaint = new Paint();
    bitmapPaint.setAntiAlias(true);
    bitmapPaint.setShader(bitmapShader);

    Bitmap output = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    canvas.drawCircle(width / 2, height / 2, Math.min(width, height) / 2, bitmapPaint);

    return output;
}