Contour (CV.Image) node doesn't work :(

vvvv beta question
1

Hi.

Does anybody know why my Contour (CV.Image) node doesn’t work?

Look at screenshot.

PS3 EYE camera + VideoIn (CV.Image)

But Contour outputs are allways same.

2

https://discourse.vvvv.org/t/12812 on the version