How do you get a high quality image from an Android phone camera?

[kereedy]

I'm trying to get a high quality image using an camera on an Android
phone. At the moment I am using the code below. The problem I am
having is that this method gives me a thumbnail-sized Bitmap image,
while I want the high quality image for my program. At the moment I am
merely scaling up the image to increase its size, but the quality is
terrible. I was wondering if anyone knew how to get the better quality
image from the camera.

Thanks for any help!

Code:

// I have this in earlier my activity, it's how I call the camera

Intent cameraIntent = new
Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);

....

// This is what I'm using to get the bitmap at the moment

protected void onActivityResult(int requestCode, int resultCode,
Intent data) {

if (requestCode == CAMERA_PIC_REQUEST)
{
if(resultCode != RESULT_CANCELED)
{
// I believe this is the source of my problem
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");

Bitmap scaledImage = Bitmap.createScaledBitmap(thumbnail, 312,
540, false);

try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
scaledImage.compress(CompressFormat.JPEG, 100, bos);

bis = new ByteArrayInputStream(bos.toByteArray());

} catch (Exception e) {
Log.e("outstream_tag", "Problem with
ByteArrayOutputStream " + e.getMessage());
}

showDialog(0);

ivPhoto.setVisibility(ImageView.VISIBLE);
ivPhoto.setImageBitmap(scaledImage);
btnTakePhoto.setVisibility(ImageView.VISIBLE);
}
else
{
btnTakePhoto.setVisibility(ImageView.VISIBLE);
}
}
}