Blur effect for ImageView

Blur.java

package ru.goryachev.tmate;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.ScriptIntrinsicBlur;

public class Utils {

    @SuppressLint("NewApi")
    public static Bitmap blurRenderScript(Context context, Bitmap smallBitmap, int radius) {
        try {
            smallBitmap = RGB565toARGB888(smallBitmap);
        } catch (Exception e) {
            e.printStackTrace();
        }

        Bitmap bitmap = Bitmap.createBitmap(
                smallBitmap.getWidth(), smallBitmap.getHeight(),
                Bitmap.Config.ARGB_8888);

        RenderScript renderScript = RenderScript.create(context);

        Allocation blurInput = Allocation.createFromBitmap(renderScript, smallBitmap);
        Allocation blurOutput = Allocation.createFromBitmap(renderScript, bitmap);

        ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(renderScript,
                Element.U8_4(renderScript));
        blur.setInput(blurInput);
        blur.setRadius(radius);
        blur.forEach(blurOutput);

        blurOutput.copyTo(bitmap);
        renderScript.destroy();

        return bitmap;

    }

    private static Bitmap RGB565toARGB888(Bitmap img) throws Exception {
        int numPixels = img.getWidth() * img.getHeight();
        int[] pixels = new int[numPixels];

        img.getPixels(pixels, 0, img.getWidth(), 0, 0, img.getWidth(), img.getHeight());

        Bitmap result = Bitmap.createBitmap(img.getWidth(), img.getHeight(), Bitmap.Config.ARGB_8888);

        result.setPixels(pixels, 0, result.getWidth(), 0, 0, result.getWidth(), result.getHeight());
        return result;
    }
}