Hi guys.
Usually I develop image process or recognition program on windows. But I got a custom who requires me to implement one on Linux platform.
Because his platform is embedded system, I can not know for sure that OpenCV would be available. Could anyone give me some clue to get started?
You can package OpenCV with your application.
The word 'embedded' makes me nervous - image recognition can be very computationally expensive. You may need to roll your own code to fit the target constraints.
The starting point of your own code is likely to implement a Haar-like recogniser. This is of course what you'd likely be using OpenCV to do. A more ambitious recogniser is HOG. Here's a nice comparison of them.
Adaboost should be a good fit for use as a learning algorithm. Paul Viola and Michael Jones have an interesting paper on efficient face detection using Adaboost and Haar classifiers. There's a lot of math there, but it's worth reading.