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

/**
 * Compares two bitmaps and gives the percentage of similarity
 *
 * @param bitmap1 input bitmap 1//  w ww.  j  a  v a  2s . com
 * @param bitmap2 input bitmap 2
 * @return a value between 0.0 to 1.0 . Note the method will return 0.0 if either of bitmaps are null nor of same size.
 *
 */
public static float compareEquivalance(Bitmap bitmap1, Bitmap bitmap2) {

    if (bitmap1 == null || bitmap2 == null || bitmap1.getWidth() != bitmap2.getWidth()
            || bitmap1.getHeight() != bitmap2.getHeight()) {
        return 0f;
    }

    ByteBuffer buffer1 = ByteBuffer.allocate(bitmap1.getHeight() * bitmap1.getRowBytes());
    bitmap1.copyPixelsToBuffer(buffer1);

    ByteBuffer buffer2 = ByteBuffer.allocate(bitmap2.getHeight() * bitmap2.getRowBytes());
    bitmap2.copyPixelsToBuffer(buffer2);

    byte[] array1 = buffer1.array();
    byte[] array2 = buffer2.array();

    int len = array1.length; // array1 and array2 will be of some length.
    int count = 0;

    for (int i = 0; i < len; i++) {
        if (array1[i] == array2[i]) {
            count++;
        }
    }

    return ((float) (count)) / len;
}

From source file:Main.java

public static Bitmap scale(Bitmap bitmap, float scale) {
    if (bitmap == null) {
        return null;
    }//from  ww  w.j a  va2  s .c  om
    int width = Math.max(1, (int) (bitmap.getWidth() * scale));
    int height = Math.max(1, (int) (bitmap.getHeight() * scale));
    return Bitmap.createScaledBitmap(bitmap, width, height, false);
}

From source file:Main.java

public static Bitmap handleImageEffect(Bitmap bm, float hue, float saturation, float lum) {
    Bitmap bmp = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bmp);
    Paint paint = new Paint();

    ColorMatrix hueMatrix = new ColorMatrix();
    hueMatrix.setRotate(0, hue);/* w  w w  .ja va2 s  .com*/
    hueMatrix.setRotate(1, hue);
    hueMatrix.setRotate(2, hue);

    ColorMatrix saturationMatrix = new ColorMatrix();
    saturationMatrix.setSaturation(saturation);

    ColorMatrix lumMatrix = new ColorMatrix();
    lumMatrix.setScale(lum, lum, lum, 1);

    ColorMatrix imageMatrix = new ColorMatrix();
    imageMatrix.postConcat(hueMatrix);
    imageMatrix.postConcat(saturationMatrix);
    imageMatrix.postConcat(lumMatrix);

    paint.setColorFilter(new ColorMatrixColorFilter(imageMatrix));
    canvas.drawBitmap(bm, 0, 0, paint);
    return bmp;
}

From source file:Main.java

public static Bitmap cutBitmap(int newWidth, int newHeight, Bitmap bitmap) {
    if (bitmap == null) {
        return null;
    }/*from ww w . j  a  v  a 2  s  .  c  o m*/
    if (bitmap.getWidth() > newWidth) {
        int startX = (bitmap.getWidth() - newWidth) / 2;
        Bitmap targetBitmap = Bitmap.createBitmap(bitmap, startX, 0, newWidth, newHeight);
        if (!bitmap.isRecycled()) {
            bitmap.recycle();
        }
        return targetBitmap;
    } else if (bitmap.getHeight() > newHeight) {
        int startY = (bitmap.getHeight() - newHeight) / 2;
        Bitmap targetBitmap = Bitmap.createBitmap(bitmap, 0, startY, newWidth, newHeight);
        if (!bitmap.isRecycled()) {
            bitmap.recycle();
        }
        return targetBitmap;
    }
    return bitmap;
}

From source file:Main.java

public static Bitmap rotateImageView(int angle, Bitmap bitmap) {
    Matrix matrix = new Matrix();
    matrix.postRotate(angle);/*from w ww .ja  v a  2s  . co  m*/
    return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
}

From source file:Main.java

public static Bitmap rotateDrawable(Context context, @DrawableRes int resId, int angle) {
    Bitmap bmpOriginal = BitmapFactory.decodeResource(context.getResources(), resId);
    Bitmap bmResult = Bitmap.createBitmap(bmpOriginal.getWidth(), bmpOriginal.getHeight(),
            Bitmap.Config.ARGB_8888);/*w w  w  .j av  a2 s.c o  m*/
    Canvas tempCanvas = new Canvas(bmResult);
    tempCanvas.rotate(angle - 90, bmpOriginal.getWidth() / 2, bmpOriginal.getHeight() / 2);
    tempCanvas.drawBitmap(bmpOriginal, 0, 0, null);
    return bmResult;
}

From source file:Main.java

private static Bitmap rotateImageView(int angle, Bitmap bitmap) {
    Matrix matrix = new Matrix();
    matrix.postRotate(angle);//from  w  w w  . j a v  a 2s  .c o m
    return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
}

From source file:Main.java

public static Bitmap createRoundedBitmap(Context context, Bitmap bitmap, int radiusDP) {
    Bitmap bmp;/*from   w  w  w.  j  a  v a  2 s .c  om*/

    bmp = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    BitmapShader shader = new BitmapShader(bitmap, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);

    float radius = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, radiusDP,
            context.getResources().getDisplayMetrics());
    Canvas canvas = new Canvas(bmp);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setShader(shader);

    RectF rect = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
    canvas.drawRoundRect(rect, radius, radius, paint);

    return bmp;
}

From source file:Main.java

public static Bitmap doRotate(Bitmap b, float angle) {
    Matrix matrix = new Matrix();
    matrix.postRotate(angle);//from   w w w.  j a v a 2s .  com
    b = Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), matrix, true);
    return b;
}

From source file:Main.java

/**
 * @param b/*from  w  w w  .  j av  a 2s. c  o m*/
 * @param rotateDegree
 * @return
 */
public static Bitmap getRotateBitmap(Bitmap b, float rotateDegree) {
    Matrix matrix = new Matrix();
    matrix.postRotate(rotateDegree);
    int width = b.getWidth();
    int height = b.getHeight();
    return Bitmap.createBitmap(b, 0, 0, width, height, matrix, false);
}