Example usage for android.graphics Bitmap getWidth

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 Bitmap compoundBitmap(Bitmap bg, Bitmap fg, int left, int top) {
    Bitmap result = Bitmap.createBitmap(bg.getWidth(), bg.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(result);
    canvas.drawBitmap(bg, 0, 0, null);//w  ww .  j a  v a 2  s .  c  o m
    canvas.drawBitmap(fg, left, top, null);

    return result;
}

From source file:Main.java

/**
 * Method to remove colors in a Bitmap, creating a gray scale image.
 *
 * @param source The original Bitmap./*w w  w  .jav  a  2 s  .c o m*/
 * @return The gray scale Bitmap.
 */
public static Bitmap toGrayscale(Bitmap source) {
    Bitmap bmpGrayscale = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bmpGrayscale);
    canvas.drawBitmap(source, 0, 0, getGrayScalePaint());
    return bmpGrayscale;
}

From source file:Main.java

public static int getBitmapWidth(String path, String fileName) {
    Bitmap bitmap = BitmapFactory.decodeFile(path + fileName);
    return bitmap == null ? 0 : bitmap.getWidth();
}

From source file:Main.java

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static Bitmap blur(Context context, Bitmap image) {
    int width = Math.round(image.getWidth() * BITMAP_SCALE);
    int height = Math.round(image.getHeight() * BITMAP_SCALE);

    Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
    Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);

    RenderScript rs = RenderScript.create(context);
    ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
    Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
    theIntrinsic.setRadius(BLUR_RADIUS);
    theIntrinsic.setInput(tmpIn);// w w  w . j a  v a  2 s  .co m
    theIntrinsic.forEach(tmpOut);
    tmpOut.copyTo(outputBitmap);

    return outputBitmap;
}

From source file:Main.java

private static List<int[]> getPixels(Bitmap image) {
    int width = image.getWidth();
    int height = image.getHeight();
    List<int[]> res = new ArrayList<>();
    List<Integer> t = new ArrayList<>();
    for (int row = 0; row < height; row++) {
        for (int col = 0; col < width; col++) {
            if (!image.isRecycled())
                t.add(image.getPixel(col, row));
        }// w w  w  .  j  a v a2s.  c o m
    }
    for (int i = 0; i < t.size(); i += 10) {
        int[] rr = new int[3];
        int argb = t.get(i);
        rr[0] = (argb >> 16) & 0xFF;
        rr[1] = (argb >> 8) & 0xFF;
        rr[2] = (argb) & 0xFF;
        if (!(rr[0] > 250 && rr[1] > 250 && rr[2] > 250)) {
            res.add(rr);
        }
    }
    return res;
}

From source file:Main.java

public static int[] extractPixels(final Bitmap bitmap) {
    final int w = bitmap.getWidth();
    final int h = bitmap.getHeight();
    final int[] colors = new int[w * h];
    bitmap.getPixels(colors, 0, w, 0, 0, w, h);
    return colors;
}

From source file:Main.java

public static Bitmap scaleBitmap(Bitmap bitmap, float scale) {
    int width = (int) ((float) bitmap.getWidth() * scale);
    int height = (int) ((float) bitmap.getHeight() * scale);
    if (bitmap.getWidth() != width || bitmap.getHeight() != height) {
        return Bitmap.createScaledBitmap(bitmap, width, height, true /* filter */);
    } else {/*from w ww . j  av a 2s . com*/
        return bitmap;
    }
}

From source file:Main.java

public static Bitmap createScaledBitmap(String path, float scale, boolean filtering) {
    Bitmap src = BitmapFactory.decodeFile(path);
    int width = (int) (src.getWidth() * scale + 0.5f);
    int height = (int) (src.getHeight() * scale + 0.5f);
    return Bitmap.createScaledBitmap(src, width, height, filtering);
}

From source file:Main.java

public static float getScale(Bitmap bitmap, Context context) {
    int bitmapWidth = bitmap.getWidth();
    int bitmapHeight = bitmap.getHeight();
    DisplayMetrics outMetrics = getScreenPixels(context);
    int displayW = outMetrics.widthPixels;
    int displayH = outMetrics.heightPixels;
    float scale = bitmapHeight > bitmapWidth ? displayH / (bitmapHeight * 1f) : displayW / (bitmapWidth * 1f);
    return scale;
}

From source file:Main.java

/**
 * Find the difference between two bitmaps using average of per-pixel differences.
 *
 * @param a first {@link android.graphics.Bitmap}.
 * @param b second {@link android.graphics.Bitmap}.
 * @return the difference.//  www .ja  va2  s . c o m
 */
public static double calcDifferenceMetric(Bitmap a, Bitmap b) {
    if (a.getWidth() != b.getWidth() || a.getHeight() != b.getHeight()) {
        throw new IllegalArgumentException("Bitmap dimensions for arguments do not match a=" + a.getWidth()
                + "x" + a.getHeight() + ", b=" + b.getWidth() + "x" + b.getHeight());
    }
    // TODO: Optimize this in renderscript to avoid copy.
    int[] aPixels = new int[a.getHeight() * a.getWidth()];
    int[] bPixels = new int[aPixels.length];
    a.getPixels(aPixels, /*offset*/0, /*stride*/a.getWidth(), /*x*/
            0, /*y*/0, a.getWidth(), a.getHeight());
    b.getPixels(bPixels, /*offset*/0, /*stride*/b.getWidth(), /*x*/
            0, /*y*/0, b.getWidth(), b.getHeight());
    double diff = 0;
    for (int i = 0; i < aPixels.length; i++) {
        int aPix = aPixels[i];
        int bPix = bPixels[i];

        diff += Math.abs(Color.red(aPix) - Color.red(bPix)); // red
        diff += Math.abs(Color.green(aPix) - Color.green(bPix)); // green
        diff += Math.abs(Color.blue(aPix) - Color.blue(bPix)); // blue
    }
    diff /= (aPixels.length * 3);
    return diff;
}