Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

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

public class Main {
    private static final float BLUR_RADIUS = 20f;

    public static Bitmap blur(final Context context, final Bitmap image) {
        if (null == image)
            return null;

        Bitmap outputBitmap = Bitmap.createBitmap(image);
        final RenderScript renderScript = RenderScript.create(context);
        Allocation tmpIn = Allocation.createFromBitmap(renderScript, image);
        Allocation tmpOut = Allocation.createFromBitmap(renderScript, outputBitmap);

        //Intrinsic Gausian blur filter
        ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(renderScript, Element.U8_4(renderScript));
        theIntrinsic.setRadius(BLUR_RADIUS);
        theIntrinsic.setInput(tmpIn);
        theIntrinsic.forEach(tmpOut);
        tmpOut.copyTo(outputBitmap);
        return outputBitmap;
    }
}