Android Utililty Methods Bitmap Blur

List of utility methods to do Bitmap Blur

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Description

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

Method

BitmapblurFilter(Bitmap bmp)
blur Filter 
int width = bmp.getWidth();
int height = bmp.getHeight();
int[] inPixels = new int[width * height];
int[] outPixels = new int[width * height];
Bitmap bitmap = Bitmap.createBitmap(width, height,
        Bitmap.Config.ARGB_8888);
bmp.getPixels(inPixels, 0, width, 0, 0, width, height);
for (int i = 0; i < iterations; i++) {
...
voidblur(int[] in, int[] out, int width, int height, float radius)
blur 
int widthMinus1 = width - 1;
int r = (int) radius;
int tableSize = 2 * r + 1;
int divide[] = new int[256 * tableSize];
for (int i = 0; i < 256 * tableSize; i++)
    divide[i] = i / tableSize;
int inIndex = 0;
for (int y = 0; y < height; y++) {
...
Bitmapblurred(Bitmap source)
blurred 
int i = 0;
for (i = 0; i < scales.length && source.getWidth() > MIN_SIZE
        && source.getHeight() > MIN_SIZE; i++)
    source = Bitmap.createScaledBitmap(source, source.getWidth()
            / scales[i], source.getHeight() / scales[i], true);
for (i--; i >= 0; i--)
    source = Bitmap.createScaledBitmap(source, source.getWidth()
            * scales[i], source.getHeight() * scales[i], true);
...
Bitmapfastblur(Context context, Bitmap sentBitmap, int radius)
fastblur 
if (Build.VERSION.SDK_INT > 17) {
    Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
    final RenderScript rs = RenderScript.create(context);
    final Allocation input = Allocation.createFromBitmap(rs,
            sentBitmap, Allocation.MipmapControl.MIPMAP_NONE,
            Allocation.USAGE_SCRIPT);
    final Allocation output = Allocation.createTyped(rs,
            input.getType());
...
DrawableBoxBlurFilter(Bitmap bmp)
Box Blur Filter 
long start = System.currentTimeMillis();
int width = bmp.getWidth();
int height = bmp.getHeight();
int[] inPixels = new int[width * height];
int[] outPixels = new int[width * height];
Bitmap bitmap = Bitmap.createBitmap(width, height,
        Bitmap.Config.ARGB_8888);
bmp.getPixels(inPixels, 0, width, 0, 0, width, height);
...
voidblur(int[] in, int[] out, int width, int height, float radius)
blur 
int widthMinus1 = width - 1;
int r = (int) radius;
int tableSize = 2 * r + 1;
int divide[] = new int[256 * tableSize];
for (int i = 0; i < 256 * tableSize; i++)
    divide[i] = i / tableSize;
int inIndex = 0;
for (int y = 0; y < height; y++) {
...
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++) {
...