downsampleBitmap large bitmap

private Bitmap getDownsampledBitmap(Context ctx, Uri uri, int targetWidth, int targetHeight) {
    Bitmap bitmap = null;
    try { 
        BitmapFactory.Options outDimens = getBitmapDimensions(uri);
 
        int sampleSize = calculateSampleSize(ctx, outDimens.outWidth, outDimens.outHeight, targetWidth, targetHeight);
 
        bitmap = downsampleBitmap(uri, sampleSize);
 
    } catch (Exception e) {
        //handle the exception(s) 
    } 
 
    return bitmap;
} 
 
private BitmapFactory.Options getBitmapDimensions(Uri uri) throws FileNotFoundException, IOException {
    BitmapFactory.Options outDimens = new BitmapFactory.Options();
    outDimens.inJustDecodeBounds = true; // the decoder will return null (no bitmap)
 
    InputStream is= getContentResolver().openInputStream(uri);
    // if Options requested only the size will be returned 
    BitmapFactory.decodeStream(is, null, outDimens);
    is.close();
 
    return outDimens;
} 
 
private int calculateSampleSize(int width, int height, int targetWidth, int targetHeight) {
    int inSampleSize = 1;
 
    if (height > targetHeight || width > targetWidth) {
 
        // Calculate ratios of height and width to requested height and 
        // width 
        final int heightRatio = Math.round((float) height
                / (float) targetHeight);
        final int widthRatio = Math.round((float) width / (float) targetWidth);
 
        // Choose the smallest ratio as inSampleSize value, this will 
        // guarantee 
        // a final image with both dimensions larger than or equal to the 
        // requested height and width. 
        inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
    } 
    return inSampleSize;
} 
 
private Bitmap downsampleBitmap(Uri uri, int sampleSize) throws FileNotFoundException, IOException {
    Bitmap resizedBitmap;
    BitmapFactory.Options outBitmap = new BitmapFactory.Options();
    outBitmap.inJustDecodeBounds = false; // the decoder will return a bitmap
    outBitmap.inSampleSize = sampleSize;
 
    InputStream is = getContentResolver().openInputStream(uri);
    resizedBitmap = BitmapFactory.decodeStream(is, null, outBitmap);
    is.close();
 
    return resizedBitmap;
}