questions.

오늘 저녁은,
문제를 제대로 이해하는지 모르겠지만

Not sure if I understand the problem correctly:

1. Assign Camera to a Panel.
2. Take picture and save it.
3. Load saved picture to an invisible ImageView.
4. Use Canvas on ImageView to draw a grid or a loaded grid image on invisible ImageView.
5. Save picture in ImageView with grid using Canvas.Bitmap.WriteToStream(...)

Sorry, no time now for developing example code.
Hope this helps anyway.

First, Thank you.
You have to understand it.

Side as the camera first
May I have an example, if