Reduce size of captured image from camera in android

Here, I am saving the captured image on sdcard from camera. Here, captured image size is greater than 1 MB. I want to reduce this size to nearly 500kb to 600kb before saving to sdcard. How could I do that?

try 
        {
            Bitmap mPhoto;
            mPhoto = android.provider.MediaStore.Images.Media.getBitmap(cr, CheckInGallery.mUri);
            ByteArrayOutputStream bytes = new ByteArrayOutputStream();
            mPhoto.compress(Bitmap.CompressFormat.PNG, 100, bytes);

            File direct = new File(Environment.getExternalStorageDirectory() + "/RetailRun");
            String mydate = java.text.DateFormat.getDateTimeInstance().format(Calendar.getInstance().getTime());
            Toast.makeText(getBaseContext(), "Time :" + mydate, 5000).show();

            if(!direct.exists())
            {
                direct.mkdir();
                File file = new File(Environment.getExternalStorageDirectory()+File.separator + "/MyImage/image" + mydate +".jpg");
                file.createNewFile();
                FileOutputStream fo = new FileOutputStream(file);
                fo.write(bytes.toByteArray());
                fo.close();
             }

         else
            {
                File file = new File(Environment.getExternalStorageDirectory()+File.separator + "/MyImage/image" + mydate +".jpg");
                file.createNewFile();
                FileOutputStream fo = new FileOutputStream(file);
                fo.write(bytes.toByteArray());
                fo.close();
            }



        }

        catch (Exception e) 
        {
            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
        }