How useful could the Arduino Yun be in computer vision in a robotics project? I've recently ordered an Arduino Yun and several other components to begin on a small robotics project (based on an old 4x4 RC Truck).  Although not mandatory for what I'd like to do, I was wondering how feasible it would be to mount a small camera or two and write some software for the Linux portion of the Yun to do basic image/video analysis such as face detection and computer vision based path finding?

Mostly this is a question about the processing power capabilities of the Yun.  Has anyone had any luck doing simple image analysis/recognition on this processor?

(Also, if anyone with 150+ rep could edit this to create and add the "computer-vision" tag that would be great)
It probably has enough memory and speed to run basic object recognition software, but I there's a better solution, and that's to do your image capture and your object recognition with another device, and use the Arduino to act on the incoming data in some way. That would give you enough juice to do object tracking or searching. I plan to do this for my copter gimbal hopefully to be able to track objects on the ground, like criminals running from the cops for example.

This product will work great for that. Since you need a camera anyway, I think this is a pretty good deal... http://petapixel.com/2013/09/01/pixy-low-cost-camera-recognizes-follows-objects-color/

Can be purchased here: http://www.adafruit.com/products/1906

AdaFruit has tutorials to help you get started.  (Computer-vision doesn't exist as a tag right now and I can't create it, but I tried, sorry)