What camera resolutions does Samsung Galaxy S4 Duos feature?

Here are details about the Samsung Galaxy S4 Duos's camera sensors:
Rear Camera : 13 megapixel
Front Camera : 2 megapixel
Flash : LED
Camera Options :
+ Digital image stabilization
+ Dual Shot
+ Face detection
+ Geo tagging
+ High Dynamic Range mode (HDR)
+ Image Viewer
+ Simultaneous HD video and image recording
+ Smile detection
+ Touch to focus
+ Back-illuminated sensor (BSI)