How do I scan a QR code with a picture?

Tags

1. #right
2. #iphone
3. #buttons
4. #recognizer
5. #start
6. #reader
7. #scanning
8. #camera
9. #photo
10. #choose
11. #import
12. #screen
13. #browse
14. #album
15. #button
16. #corner
17. #image
18. #select
19. #bottom