How to increase captured image quality with Android hardware Camera 2 ?

[AC Question]

I use the Camera 2 google sample for creating my camera 2 Android app. But there is a difference of image quality between camera preview and saved captured image. I need the same image quality of captured image as of camera preview. How to achieve this? Where can I find a code example to set quality of captured image? You can find my full question description on StackOverflow with subject: How to increase Camera 2 image quality in Android?