What are the best OpenCV projects according to HackerNews?

fprime
7 comments
filament
7 comments
reactor
6 comments
doris
5 comments
centrifugo
5 comments
instant-ngp
5 comments
zephyr
4 comments
Rocket.Chat
4 comments
fluvio
3 comments
ksql
3 comments
goaccess
3 comments
TensorFlowTTS
3 comments