Will the PIXY 2.0 be able to detect stairs when coupled with Arduino ?

Detecting stairs is a vital part of a Stair Climbing robot . After searching on the web for efficient techniques to detect stairs , I came across PIXY 2.0 , which looks promising in detecting objects with a particular color hue , but I was wondering will be able to detect stairs ?.

The Pixy can detect and report the position of color blobs in an image. Color the stairs appropriately?