The problem Volume control over hand signs. solves

Controling some application with hand signs instead of control the application with an remote we made in a way with the signs. To develop it we made program with the help of opencv and meachine learing.

Challenges we ran into

hand gesture recognition in python, what would be the first solution that will pop in your mind: train a CNN, contours, or convexity hull. Sounds good and feasible, but when it comes to actually make use of these techniques, the detection is not very good and requires special conditions(like a proper background or similar conditions that you used while training)