add a new sign

Hello

I descovered that in matlab help exist a program/ application for traffic warning sign recongnition.

You can open this exemple if you write vipwarningsigns in command window.

This exemple recognise 3 different sign like: STOP, DO NOT ENTER and YIELD. I want to add a new sign. I read the detection, tracking and recognition function. I

didn't find a possibility to add a new sign.

Can anyone help me, please?

https://fr.mathworks.com/help/vision/examples/traffic-warning-sign-recognition.html