Android merge two images
<p>I have these two images, which I basically merge on canvas. Now i want to save that canvas into an image. How should i do it or if there is any other way to merge two images.</p>

<p>My sample code is  - </p>

<pre><code>            Bitmap bmp1 = BitmapFactory.decodeResource(getResources(),
                R.drawable.duckpic);
        Bitmap bmp2 = BitmapFactory.decodeResource(getResources(),
                R.drawable.img);
        // canvas.drawColor(Color.BLACK);
        // canvas.drawBitmap(_scratch, 10, 10, null);
        Bitmap bmOverlay = Bitmap.createBitmap(bmp2.getWidth(), bmp2
                .getHeight(), bmp2.getConfig());
        // Canvas cs = new Canvas(bmp2);
        canvas.scale((float) 0.5, (float) 0.5);
        canvas.drawBitmap(bmp2, new Matrix(), null);
        canvas.drawBitmap(bmp1, new Matrix(), null);
        canvas.save();
</code></pre>

<p>I got it working by doing this - </p>

<pre><code>    cs = Bitmap.createBitmap(c.getWidth(), c.getHeight(), Bitmap.Config.ARGB_8888);

    Canvas comboImage = new Canvas(cs);

    comboImage.drawBitmap(s, new Matrix(), null);
    comboImage.drawBitmap(c, new Matrix(), null);
    comboImage.save();
    // this is an extra bit I added, just incase you want to save the new
    // image somewhere and then return the location

    String tmpImg = String.valueOf(System.currentTimeMillis()) + ".png";

    OutputStream os = null;
    try {
        os = new FileOutputStream("/sdcard/" + tmpImg);
        cs.compress(CompressFormat.PNG, 100, os);
    } catch (IOException e) {
        Log.e("combineImages", "problem combining images", e);
    }
</code></pre>

<p>Basically it is given here - <a href="http://www.jondev.net/articles/Combining_2_Images_in_Android_using_Canvas" rel="nofollow">http://www.jondev.net/articles/Combining_2_Images_in_Android_using_Canvas</a></p>
