Android Utililty Methods Bitmap Blur

List of utility methods to do Bitmap Blur

  1. HOME
  2. Android
  3. B
  4. Bitmap Blur

Description

The list of methods to do Bitmap Blur are organized into topic(s).

Method

Bitmapblur(Bitmap bitmap)
blur 
int iterations = 1;
int radius = 8;
int width = bitmap.getWidth();
int height = bitmap.getHeight();
int[] inPixels = new int[width * height];
int[] outPixels = new int[width * height];
Bitmap blured = Bitmap.createBitmap(width, height,
        Bitmap.Config.ARGB_8888);
...
voidblur(int[] in, int[] out, int width, int height, int radius)
blur 
int widthMinus1 = width - 1;
int tableSize = 2 * radius + 1;
int divide[] = new int[256 * tableSize];
for (int index = 0; index < 256 * tableSize; index++) {
    divide[index] = index / tableSize;
int inIndex = 0;
for (int y = 0; y < height; y++) {
...
BitmapcreateBlurredBitmap(final Bitmap sentBitmap)
Takes a bitmap and creates a new slightly blurry version of it. 
if (sentBitmap == null) {
    return null;
final Bitmap mBitmap = sentBitmap
        .copy(sentBitmap.getConfig(), true);
final int w = mBitmap.getWidth();
final int h = mBitmap.getHeight();
final int[] pix = new int[w * h];
...
Bitmapfastblur(Bitmap sentBitmap)
Fastblur. 
int[] radius = new int[] { 1, 2, 3, 6 };
int[] ellipseWidth = new int[] { 6, 4, 3, 2 };
Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
int w = bitmap.getWidth();
int h = bitmap.getHeight();
int[] pix = new int[w * h];
final int width = sentBitmap.getWidth();
final int height = sentBitmap.getHeight();
...
Bitmapfastblur(Bitmap sentBitmap, int radius)
Fastblur in bitmap. 
Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
Bitmap origBitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
if (radius < 1) {
    return (null);
int w = bitmap.getWidth();
int h = bitmap.getHeight();
int[] pix = new int[w * h];
...
Bitmapblur(Context context, Bitmap sentBitmap)
blur 
return blur(context, sentBitmap, BLUR_RADIUS);
Bitmapblur(Context context, Bitmap sentBitmap, int radius)
blur 
Bitmap bitmap = Bitmap.createScaledBitmap(sentBitmap,
        sentBitmap.getWidth() / 2, sentBitmap.getHeight() / 2,
        false);
if (VERSION.SDK_INT > 16) {
    final RenderScript rs = RenderScript.create(context);
    final Allocation input = Allocation.createFromBitmap(rs,
            bitmap, Allocation.MipmapControl.MIPMAP_NONE,
            Allocation.USAGE_SCRIPT);
...
BitmapfastBlurFromView(Context context, View v, int radius)
fast Blur From View 
return fastBlur(context, loadBitmapFromView(v), radius);
BitmapfastBlur(Context context, Bitmap renderedBmp, int radius)
fast Blur 
if (VERSION.SDK_INT > 16) {
    Bitmap bitmap = renderedBmp.copy(renderedBmp.getConfig(), true);
    final RenderScript rs = RenderScript.create(context);
    final Allocation input = Allocation.createFromBitmap(rs,
            renderedBmp, Allocation.MipmapControl.MIPMAP_NONE,
            Allocation.USAGE_SCRIPT);
    final Allocation output = Allocation.createTyped(rs,
            input.getType());
...
voidblurFractional(int[] in, int[] out, int width, int height, float radius)
blur Fractional 
radius -= (int) radius;
float f = 1.0f / (1 + 2 * radius);
int inIndex = 0;
for (int y = 0; y < height; y++) {
    int outIndex = y;
    out[outIndex] = in[0];
    outIndex += height;
    for (int x = 1; x < width - 1; x++) {
...