"Because we are nice people and like our code to be readable and easy to understand, we adopt the convention of adding a leading g_ to any global variable. "
Funny as it goes, the book is a practical & followable handbook for first opencv learners.
Besides, I found opencv quite interesting, too. I could write several lines of code and make my lively camera to shoot me a picture(fine, I know I look fat, but camera adds pounds...). Lol...
Good work, Gary & Adrian!
Good work, MIT!