Ignore part of an image whilst detecting LED colour
I have a board with five small LEDs that switch between red or green randomly.
A few centimeters above each led, there are large button like switches that manually switch the colour of LED. These Buttons are either Red or Green in colour.
I want to use my portable webcam to detect when an LED goes red and know which one it is (MAP it), and make a decision from that.
How do you I ignore the Red/Green Buttons, as I only want to detect when the LED goes Red. Also, how can I map the LEDs relative to the board.
I'm a total newbie to CV. Would love some guidance.
It would be helpful if you could share some images with us.